It's also hard to fathom. I don't believe these people believe what they're doing is for the greater good or that climate change is a hoax. They have children and want them to grow up to what exactly?
They believe their wealth can shield their chilren from the bad effects of climate change. They think there will be enough of the world left in a functioning state to retain their current level of luxury, and don't care about the rest.
This happens at every level of society. It's over 100 degrees where I live today. That would have been exceptional 20 years ago, but now it's normal. I have air conditioning in my house, I have air conditioning in my car. The homeless guy on the corner? He's gonna die from heat stroke. He didn't contribute to global warming but he's going to pay the price, while I can afford to insulate myself
They want them to grow up in their privileged bubble, and that is all. They literally DGAF if the rest of of us, i.e., the NPCs, all starve. Does anyone think Russian oligarchs care about the Russian peasants or "meat cans" they send to the Ukranian front? And they've already got their bunkers in New Zealand, Hawaii, or wherever if it all goes really sideways. Musk, Theil, Vance, and the rest of them care about us less than the NPSs in their FPS games, and we should regard them exactly the same way.