They can do that but then there are people like me, who need no weekend off, no vacations, can work more than 60 hours a week - I am ready to take all leadership

It has infact opposite effect on me, the more I work the more I am escaped from normal day to life problems and emotional setbacks (caused mostly by other people and being aware myself, I can't do anything but just to blame myself) I choose work as my escapism.