To be fair to management, it is the results that matter.

Management cares about what their management cares about. So this boils down to what the CEO cares about. The CEO cares about what the board cares about. The board cares about share prices going up.

I do believe that e.g. retaining engineers is something that helps the business. It's stupid that someone ramps up for 2 years and then goes to a different job just as they start becoming really effective. It costs companies a ton of money which they could instead just use to get people to stay. But I'm not on Google's board. It's only when Google board decides that fostering the right engineering culture is important enough for the business that something is going to change. And so far- they don't (s/Google/BigTech).

Re: Incentives- Obviously(?) the incentives are not right. So when you say "plenty of incentive" what it really means is incentive to ship sloppy code and get promoted. Or the incentive to go from Google to OpenAI and get a pay increase or whatnot.