I realized this about 6 months ago, and this is exactly why I decided to start my own company. People that truly want to change the world should do the same, unless you fear instability more than you desire to change the world.
Serious question: why does starting a company equate to changing the world? The vast majority of companies sell some good or service for a fee, which is of course super important for society but not exactly world changing. I guess the hope is you can grow your company large enough to have a major impact without selling out so much as to just care about profits and shareholders?