I agree with what the others below have written, but wanted to just add:
If you aim for entrepreneurship, which it sounds like you might want to, I think it makes sense to stay open to the possibility that in addition to building companies that could also mean things like running big projects within existing companies, starting a nonprofit, running a big project in a nonprofit, or even running a project in a govnerment agency if you can find one with enough flexibility.
I agree with what the others below have written, but wanted to just add:
If you aim for entrepreneurship, which it sounds like you might want to, I think it makes sense to stay open to the possibility that in addition to building companies that could also mean things like running big projects within existing companies, starting a nonprofit, running a big project in a nonprofit, or even running a project in a govnerment agency if you can find one with enough flexibility.