There is nothing disrespectful to be sought here. And if it was, I wouldn't care. If my name was really as bad so that I would have to go and change my name because I get teased and made fun of all the time I would consider that my parents did a pretty crappy job back then when they chose the name. And you wouldn't reward a crappy job with respect now, would you? I think not. I wouldn't, anyway.
What the real issue is though: it costs money to change your name. It shouldn't in my opinion. I mean, okay, it's certainly leading to a bloody mess with paperwork and bureaucracy when some people constantly change their names as they see fit, sure. So this would be the plus side of not having the opportunity to do it whenever you like without any cost. The downside however is that you are forced to live with that name and get called with that sound (as described well by the post above) all your life.
But then again, if you develop deeper relationships with people, you might be given a nickname (I, for once, like it better when people call me by my various nicknames, be it my internet nicknames or reallife nicks given to me at some point in life) or something. Most of the time I try to get people to call me "Socke" instead of my real name ("Socke" is the german word for "sock", don't ask where it comes from. It's just weird), which indicates I am less than happy with it. But on the other hand I do not care enough about this triviality of names that I'd consider changing it.
Really, aren't names trivial? I don't know 'bout you guys, but I don't have a problem to have a personal conversation with someone without mentioning his/her name even once. I don't need that. Of course, in terms of identification it is useful.
I think I digressed a bit.