No, it is not the individual action of billionaires but the profit driven nature of capitalism that is killing us. If billionaires were immortal they would simply move to more livable places, kill and impoverish large groups of us to reduce the environmental load or create ecospheres to house themselves while we burn.

The problem is not that all billionaires are bad people (they are), its that the economic system they uphold necessitates infinite growth on a finite planet. If these billionaires don’t constantly grow their empires then a more evil capitalist willing to exploit others and the environment more efficiently will outcompete them and take their place.

Being shortsighted isn’t inherent to a billionaire but it is inherent to the system that justifies their existence