Bill Gates' wealth grew much more after he left Microsoft than while he was CEO. Was that wealth earned through innovation? No. He simply owned something that became more valuable as other people labored to innovate.
My position is that this is not a good thing.
Also, a large share of the value I add to society is attributable to the person who set up the institution I'm working in. I work hard and am friendly but without someone setting up an organization that employs programmers usefully, the most I can do for you is fix your Wifi. I would vote to keep paying the builders after they leave.
If we believed that the only people who should be morally allowed to benefit from asset appreciation are the people who actively work for that company, the entire economy would collapse.
For example, every pension fund, endowment, retirement fund, etc. are all invested in financial assets that they had NO role in. All they do is own something that become more valuable as other people labor and innovate! Shall we cast them as evil capitalists?
AOC’s criticism is that “own stock, share in gains” is not the same as earning money.