How billionaires and corporations are going to act, is entirely predictable. By changing the incentives and disincentives, you can change their behavior. But they are not going to do it by themselves, out of the goodness of their hearts. Corporations don't have hearts.
The switch from internal combustion engines to renewables, was unlikely to ever happen organically. It must be properly incentivized by central governments. China did this. We could do this too.