No.
It's gluttony when they eat more than they need. Or when they eat when they're not hungry anymore. It has nothing to do with how many helpings they go for. And it has nothing to do with their gender.
When I go to a buffet with my husband, my hubby piles a HUGE amount on his plate. Like... a lot. I tend to try and make myself go back for more. So I get a small amount, then go back, small amount, go back... it's a way of making myself aware of how much I'm eating. It's like when someone has a pizza and puts 6 slices on their plate, while someone else takes one and goes back every time. The person with the 6 slices is more likely to eat more than the person who has to get up and go get another slice.
So stop being judgmental.