Their parents bought them Ivy League degrees, entitling them as experts in every field. They won't listen when experienced engineers advise them the ocean's weight will flatten their tinfoil sub into a pancake because they know everything, and no one tells them no.
They believe they're invincible Gods who will escape nature's wrath, and their money may buy them time, but they'll endure the hell that's coming. Plus, they'll be bored without us (the peasants) and turn on each other, which seems to be occurring already. The oligarchs disagree on which war to wage first, Russia or China, and throw fuel on both prospects, disregarding the military's capability to engage with two giant nations.
The heat from climate change or WWIII will kill us - that's for sure. What a future!