Family was very important to the Weasley's they weren't the ones who dumped him, it was the other way around. Percy was too good for them, so good for him. They wouldn't want to put up with his uppity arse anyway.
"Gryffindors are brilliant, perfect, and if you didn't know Athletically superior to all the other houses." George flexed a muscle and smirked, "Or you can call me Georgie it's what all the ladies do. My mum however tends to call me, 'Knock it off!' or is that more telling me...?"