Like it or not in the end it's one's body. It's literally what carries you through life. There's a reason for the saying 'If you have your health you have everything ' and it's true. Old age disease - these are the great equalizers.
I don't find acting to be a particularly noble way to make a living. I'm not saving anybody's life I'm not a teacher I'm not working for UNICEF. I don't think I'm some big deal.