I don't think it is quite stupidity that the tower breeds. But I do believe that their structure  ingrains that belief that they are better human being than others are just because they can weild the One Power. Aes Sedai always defer to the one who is stronger in the power but if you look at the wise ones they defer to the elders regardless of their strength in the power. The way N E and E treat Mat and Thom is very arrogant. Then later the aes sedai practically begs Mat to get her out of the city before the Seanchan can collar her. She goes so far as to say that the will do anything. Then once they are a few miles away she goes back to being snobby and rude to Mat. That doesn't mean that all of them are that way but quite a few are. I don't know about the the males who channel because we have seen so few of them as main characters. Rand and Taim seem to tend towards arrogance but Logain seems to be down to earth. I defintely think some of the aes sedai should spend time in the care of the wise ones. I do think it is strange that they train you to be all powerful and expect great responsibility but to punish you get sent for spankings?!?

What bothers me about them is not that they think their way is always the best but how they treat other people as being lesser humans than themselves. They should be given over to the wise ones for a little re-education in how to treat people with respect.