Triangle of Sadness is one of the best allegories of the 21st century. I also *highly* recommend Ostlund's other films too, especially Force Majeure, which does to gendered & wealth/power-based relationships what Triangle does for how power infects humanity.
I do think this question of power is important, because we've chosen to associate power with financial wealth in this capitalist era, but it need not be so. The question for me is, knowing what we know about our innate desire for power (yes, we all struggle with it it; yes, even giving money away is a form of wielding power), how do we define power in such a way that it can be more virtuous than it currently is now?