Of course it is - yet governments and investments are showing early signs of divestment, including by pension schemes. If regulations to require carbon impact become a consideration in investment, or market listing - there's early signs some are thinking in those directions - then those pension schemes will start voting inconveniently or divest more significantly. If one of the top 5 blocs bakes climate into their approach trade, things could change fast.

Exxon have the mass that it will take a great deal to actually impact, but large industries have been abolished or turned into niche industry before. No reason to believe it won't happen again.