That's the thing: it doesn't matter if individuals within the company, including Spencer, care and actively want to make gaming and people's lives better out of the goodness of their hearts. Their presence and involvement within the company is predicated on them maximizing profit.
The company exists to make money, and everything else is a byproduct. If numbers start coming in that say Phil's approach is going to lose Microsoft money, he will be replaced. "Doing right by people" is allowed to continue as long as it makes the most cash possible. If it stops doing that, then it is shown the door.
This isn't a critique of the people working for Microsoft, this is a critique of shareholder-driven economics (of which all our favorite hardware makers are a part).
This is rediculously reductive. It's too easy to point to people in companies that don't actually care about making good games or doing right by people to show that outcomes are worse with people who don't care.
The system can be bad, but people who want to maximize revenue by making good things will have better outcomes for, well, everyone, than those who want to maximize revenue in any way possible.
If you want to frame every capitalist transaction as win-lose, then there is a vast gulf between 51-49 and 99-1.