Here's how I think this could possibly play out: Facebook and Google start paying 21-year-old kids $200k directly out of school, startups start paying ridiculous unsustainable salaries based on VC salaries. Savvy founders and hiring managers at other companies realize they can't economically compete for 25-year-old golden boy talent and start looking at other demographics to find the talent. Over time those savvy companies will thrive while the others are crushed by having to pay for inferior talent at inflated prices with bubble-time VC funds.

Obviously this only works if people realize that older and minority talent is getting unduly passed over. And also I don't know how strong this effect will be or whether the existing tidal wave of bias is too overwhelming for such an anti-trend to even register in the marketplace. Whether or not this would even constitute justice goes beyond my thesis (I believe in ethical business, but justice is quite a tall order). Nevertheless, as a hiring manager, I see any market bias that I am aware of as a competitive advantage to me, and I'm convinced that effect is real no matter how small.