Honest question: we have unlimited examples of corporations run amok. What examples of law abiding billionaires run amok have we lately? I'm sure they exist but

Honest question: we have unlimited examples of corporations run amok. What examples of law abiding billionaires run amok have we lately? I'm sure they exist but all I can think of is funding ventures that harm the public good (eg, taking all the nice beach front property, lobbying for oil and gas subsidies, legal bribery, or in an extreme case funding extremist organizations). Most of the excesses seem to be a matter of not outlawing bad things. Is the wealth itself actually harming anybody? Edit: I guess there is the snowball effect where previous winners have competitive advantages in new competitions, or else outright rent seeking behaviours. I'm also curious about those aspects.