People may not agree, but every argument I've heard against unionization contains this sentiment. Even if it isn't expressed so boldly.
Because before they were on the A-list, when they were no-names struggling to get by, it was the union rules that made it possible for them to eke out a living while they waited and worked for their big break, and it was the union rules that protected them from being exploited when they finally got their big break.
The truly smart recognise it’s not their co-workers taking money away from them.
In capitalism the amount you get paid is dependent on supply and demand. The "value" you add is irrelevant if they could easily replace you with someone else.
I feel like I notice this more in my dev friends than my non dev friends. I wonder why?