As the human circus of presidential politics has plodded along for what seems a decade now, a revolution has been taking place in the ever-more-dignified animal kingdom.

Several victories in just the past few weeks have raised cheers, or their equivalent, in aquariums, barnyards and board rooms across the country as three giants in the food, clothing and entertainment industries have launched policies to reduce animal suffering:

Last month, SeaWorld announced it is ending its orca-breeding program, much criticized following the release of CNN’s 2013 hit documentary “Blackfish.” Once the current population expires, so, too, will its killer-whale “entertainment.” The company is also beginning a transition to a rescue-and-rehabilitation model for marine mammal entertainment, and has joined the Humane Society of the United States in calling for Japan to end its commercial whaling.

Walmart, along with other major retailers, has agreed to only sell eggs that come from cage-free chickens by 2025. As the nation’s largest food seller, Walmart’s decision has massive implications for the billions of hens condemned to life in extreme confinement.

Finally, Armani has vowed to stop using animal fur in its clothing line, a decisive indicator that the use of real fur is unnecessary given the wide array of alternatives.

Facing criticism over their treatment of marine mammals, SeaWorld says it will stop breeding killer whales and those currently at its parks would be the last. (Reuters)

These may seem like smallish strides, but they’re component parts of a revolution in business and public policy. “Creative destruction” is what Wayne Pacelle, leading animal welfare activist and president and chief executive of the Humane Society of the United States, calls it. And it’s happening in all sectors of the economy, including tourism, wildlife management, the pet trade and, perhaps most relevant to readers, food.

And, no, “they” aren’t going to take away your burgers. But you might be willing to shed them, along with a few pounds, if an equally tasty alternative were available, right? Hold that thought for now.

These policy shifts are the product of a sweeping evolution in consumer consciousness, but at least some thanks is due to Pacelle’s superhuman work ethic and the rigorous moral code that brought him to veganism 30 years ago. As he sees it, humans’ power over other creatures requires that we act as their stewards rather than their torturers and slaughterers.

Under Pacelle’s leadership, the Humane Society (where, full disclosure, my son works) isn’t just a puppy-and-kitten rescue operation, though ending puppy mills and domestic animal abuse are top priorities. Primarily, the organization is policy- and business-focused, working with companies such as SeaWorld, Walmart and Armani to create more enlightened business models.

These things take time, but the humane imperative seems to have become contagious and taken hold. The operating principle: Humane treatment of animals and good business practices are not mutually exclusive.

To better explain this, Pacelle has written a book, due out April 19, called “The Humane Economy.” I’ve read it to prepare for a public conversation Monday night with Pacelle and Sen. Cory Booker (D-N.J.), also a vegan. It’s an easy, fascinating read about big thinkers, investors and others who are seeking new ways of doing business with less animal suffering.

In one chapter, Pacelle documents the rise of plant-based meat alternatives being spearheaded by groundbreaking companies such as California-based Hampton Creek — one of the fastest-growing food start-ups ever — and Beyond Meat, whose products some may recognize at their local Whole Foods.

These offerings, among other new energy and protein sources that seek to remove animals from the production process, may signal the beginning of a new, more sustainable food future. Consider: Already we raise 70 billion animals a year globally for food. If the human population inflates to 9.6 billion by 2050, as expected, and demand for meat continues to grow, we’ll need to commensurately increase the number of animals. That’s an awful lot of slaughter, not to mention methane. Thus, protein alternatives may not be merely an option for the health-conscious but a necessity for the hungry.

Other futuristic foodies suggest that people may prefer a twice-daily shake or wafer (yes, this comes to you from a company named Soylent) to spending so much time procuring, cooking and consuming food, otherwise known as breaking bread with friends and family. Is there something better we should be doing?

In the meantime, what Pacelle makes appetizingly clear is that humane business practices make economic as well as karmic sense. And consumers as well as companies seem to be catching on. SeaWorld’s stock bounced more than 15 percent immediately after its policy announcement. And Google reportedly tried to buy plant-based burger company Impossible Foods in 2015 for more than $200 million.

Human virtue, it seems, can be profitable — and delicious, too.

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