a man has to do what a man has to do

A strong, virtuous person must do what they feels needs to be done, even if it is dangerous or undesirable. Sometimes said ironically. It might be dangerous delivering water to the refugees, but a man has to do what a man has to do. I know it's a lot of cotton candy to eat, but a man has to do what a man has to do. You need me to just hang out at the pool all day and stay out of your way? Well, a man has to do what a man has to do!