Are many successful game programmers in corporate environments leaving the office at a respectable time every day? I definitely don't get that impression at all

Are many successful game programmers in corporate environments leaving the office at a respectable time every day? I definitely don't get that impression at all. At least in a 2/3 man team surviving on pizza and Coke you're not lining someone else's pockets with millions of dollars only to be thrown out onto the street at the end of the process.