I think the more relevant constraint that you are touching on is ego, big directors with big budgets can and do make great films often, so I don’t think a limit

I think the more relevant constraint that you are touching on is ego, big directors with big budgets can and do make great films often, so I don’t think a limited budget is really the necessary factor. I do think losing the ability to self criticize is one of the things we see over and over again in big artists but some do seem to manage it despite massive success.