Most bands, when they sign with a major, are from an indie. They usually start off with a big dilemma. They think they're selling a part of their souls or they're losing control over an aspect of their lives or something.
Fifteen minutes of fame doesn't make a career. An article in a magazine, newspaper, interview on television or multiple print ads may stroke your ego, but nothing much else. An artist's career is a lifetime venture. Just because an artist is on top doesn't mean they are sheltered from a crash. As has been stated, the higher you climb, the harder you fall.