An effective investor mindset is to buy the whole market and forget it. Doing your own projections and trying to choose a particular company based on your belief that it’s stock will go up 150% over the next few years is a thing that virtually zero people can do effectively.
Except that you are literally investing a large chunk into the company you are going to work for. So while you may take that approach with your discretionary income, you are taking a different stock-picking approach joining a company that offers equity compensation. Unless you join Netflix.
So while you're saying one thing here, you're actually doing another.