The only thing Jim Harbaugh makes more of an effort to conceal than his players’ injuries is his presumed wealth.

Harbaugh drives a beat-up blue pickup, apparently owns a strictly khaki-and-fleece wardrobe that could fit in a duffel bag and avoids referencing that he could probably buy a small island country as a longtime NFL quarterback who signed a five-year, $25 million contract last year.

When asked last season about the nicest gift he ever lavished on his offensive linemen as a player, Harbaugh declined to answer. A reasonable conclusion is he remained tight-lipped because he was a cheapskate who wouldn’t even spring for steak dinners. In fact, he gave at least one group of linemen inscribed Rolex watches when he played for the Bears.

The hyper-competitive Harbaugh is famously fond of winning, but he doesn’t appear to measure himself against others when it comes to cash. With this in mind, he’s probably just fine with ranking last among NFC West head coaches in one category: annual salary.

Forbes revealed its list of the top-10, highest-paid coaches in sports and Harbaugh didn’t appear while St. Louis’ Jeff Fisher ($7 million), Seattle’s Pete Carroll ($7 million) and Arizona’s Ken Whisenhunt ($5.8 million) made the cut.

I’m guessing this won’t occupy Harbaugh’s thoughts today as drives home in a pickup which often has a pink gas can rattling around in the back, yellowing sports pages strewn across the dashboard and a CD player that was busted last season, preventing him from listening to old Bo Schembechler pregame speeches.

Harbaugh presumably could have challenged the Patriots’ Bill Belichick ($7.5 million) as Forbes’ highest-paid coach if he followed billionaire owner Stephen Ross’ money to Miami 16 months ago.

At his introductory press conference with the 49ers, Harbaugh trotted out the often-used line: His decision wasn’t about the money.

Looking back, it’s possible he might have actually been telling the truth.

“I don’t really ever talk about money, and it wasn’t a factor,” Harbaugh said at the time. “I like a buck just like the next guy, but I love coaching, and I love winning, and I love football.”