Thanks to the support of the people of Santa Clara, the San Francisco 49ers are rolling in dough.

Forbes magazine last week listed the value of the team at $2.7 billion. The Niners, according to Forbes, are the fifth most-valuable team in the NFL and had the biggest one-year increase in value — 69 percent — of any team in the league, thanks in large part to moving into the $1.2 billion Levi’s Stadium.

Team revenue from ticket sales, sponsors, luxury suites and non-football events jumped 160 percent from the previous season, Forbes reported.

Yet CEO Jed York still won’t live up to the commitment he made — before the public vote on Levi’s Stadium — to replace the Santa Clara Youth Soccer League’s tournament-class fields that the stadium is crowding out. York’s corporation is walking away from its responsibility. Or, more likely, driving away in a convoy of Brinks Armored Vehicles.

This is not how community relationships are built. Amassing riches at the expense of kids’ soccer is not how honorable executives or corporations behave.

York made a 2012 commitment to “underwrite several regulation-sized additional soccer fields in Santa Clara” to replace the 11-acre complex adjacent to the stadium on land the team needs for parking. But Monday night, as the 49ers opened their season with a 20-3 win over the Minnesota Vikings before a sell-out crowd at Levi’s Stadium, kids headed for soccer practice and their harried families had to navigate through the masses attending the game.

Once the stadium project was underway, it became clear that replacing the soccer park wouldn’t be easy because of a shortage of suitable sites. Even Ulistac Nature Preserve has been threatened, a virtual parody of a big corporation throwing its weight around.

About five months ago, this seemed to be coming to a head. The 49ers proposed taking control of the soccer site in exchange for $15 million to help the city build a youth sports complex somewhere else, on top of the $3 million committed earlier to build or upgrade school district fields. But what that amount would buy, and where, is unresolved. And for a company valued at $2.7 billion, $15 million is pocket change.

We’re thrilled that the 49ers are here. We urged voters to support the stadium because we thought it would be an asset for the region, and it is. We can’t wait for Super Bowl 50.

But we also were persuaded before the vote that the Niners would be an excellent corporate citizen. We never dreamed it would steamroll youth soccer.

At the end of last year’s football season, York famously told KNBR’s Brian Murphy, “Winning isn’t the only thing that matters. Winning with class is what matters.”

We couldn’t agree more. We just think it should apply to youth soccer the same as to battling other multimillionaire players for other multibillion-dollar franchises on the gridiron.