If you don’t mind my saying, Monroe lived in a world of fantasy, as indicated that she sincerely believed that JFK would leave his wife and marry her during their affair. If you don’t have a good grounding in reality, you get destroyed by that system. Same with Dandridge really. Both kept refusing or were unable to face the realities of their personas. Monroe chose the sexpot role and same with Dorothy.
A lot of actresses sadly don’t realize that once you go into that industry, you are an object, not a human being. And men will not be interested in you for your mind initially.