Earlier quoted context omitted.
Politicians are at least theoretically accountable to an electorate, whereas egomaniacal billionaires are accountable to nobody.
uhhh... they are accountable to every one of their clients, every time those clients make a purchase. For almost all billionaires, that's a far larger constituency and a much more frequent and efficient selection process compared to elections every x years by the 30% of the population who bother to vote. As soon as they stop performing, the money stops rolling in.
Nearly nobody gives a damn about the behaviour, eccentric, insane, evil, or otherwise, of the primary shareholders of a corporation that is involved, directly or indirectly, in producing products that they consume.
I may think that the Sackler family are murderous scumbags, but if I need medication made by Purdue, that's the medication I'll be buying.