Usually a billionaire giving his fortune away does it out of vanity, out of guilt, for the tax breaks, out of conviction that their success in business makes them equally expert in solving the world’s problems or last but not least as “legacy” as explained by John Caudwell: http://www.theguardian.com/society/2012/mar/07/new-philanthr...
It's like hating Ford because they make cars, while ignoring all other automobile companies.
And they want to build cars for all poor people, but those cars can only travel to certain destinations on certain roads, but Ford making and providing these cars means other organisations who sell bicycles or mopeds or small cars (which provide a lot more freedom) are hampered.
I like the future Bill Gates and Elon Musk want to bring. I do not like the future the Koch Brother's envision.
I won't excuse the whole "killer instinct" thing they all have in common. It's just how humans sometimes work.
Don't get me wrong - Koch et al is a weird company but there's room for that, too. W.R.T energy I hope you're right but it moves slowly.