If I thought of myself as a movie star, I'd be an idiot. I don't know anyone who thinks like that. I don't even know movie stars who think like that. ↗
Stars didn't have to worry as they were on long term contracts and were able to enjoy their vacations without worrying about tomorrow. Few had financial worries due to large incomes and little taxes. ↗
Women were real box office stars in the '40s, more so than men. People loved to see women's films. I think it was better then, except for the studio system. ↗
For example, some stars put out large amounts of energy in the infrared part of the spectrum, so that this can produce a different relative magnitude rating than using light energy from the middle of the spectrum. ↗