Investors siphon money from expanding and building infrastructure from a very profitable company.
That profit incentive is the reason why they invested the money in the first place. That's how capitalism works.
We've gotten a lot of excesses in the modern age (CEO salaries and toothless Boards of Directors come to mind) but you are seemingly taking issue with the foundation of our system itself. I doubt you'll find a very sympathetic audience for your viewpoint outside of the extreme left wing.