Billionaires are always the enemy.
You do not get to even 1 billion without causing massive indirect harm to a shitload of people. No one, no one, every, has put in enough to “earn” 1 billion. The vast majority of people will work their entire lives and be lucky to have a gross total income of a few million. Thats Gross, not worth or wealth, thats, “I took money in and spent it to live.”
I would argue anyone worth much over 10 million is in the same harm causing boat as billionaires.
I was told once there was an MBA program offered through work and I could think was something like, “Why would I want a degree in bull shit when I already have a useful degree?” (Mechanical Engineering)