I mean they’re not all super rich but especially in the USA and especially with actors or TV personalities it seems like the well known ones make huge amounts of money. Just picking people at random and doing some searching online, apparently Scott Bakula got paid $120,000 for each episode of NCIS: New Orleans he was in which totalled over $18 million. Some sources say that Sarah Sherman, who’s been on SNL for 3 seasons, is worth around $4 million. Why do they get paid huge amounts of money when most people, even if they’re at the top of their industry, make a fraction of that?
Here’s what it comes down to: negotiations based on how much money the industry makes from their work. Because without the artist, comedian, etc., their profits vanish.
Now understand that every worker in the world could realise the same thing. That’s what unions are for, having that weight to give the employees of a company leverage and ask for a bit more of the pie that wouldn’t exist without their work. Why do you think businesses fight unions so damn hard? Because it’s easier to distract or scare enough of a worker group, mostly compared to a single artist.