Exactly! However, there are some members of the GBP that are so deluded that this will lead them into the roads to fame and fortune, where the streets are paved with gold forever and ever. Of course, for some it hasn't turned out too badly (Will Young? Liberty X?), but for the rest of 'em, they've faded back into obscurity and their supposed day jobs. Michelle Mcmanus, Darius Danesh, Hear'Say?
The reality is very much the opposite - the whole talent show format is simple - to rake in as much publicity and cash as possible for the companies concerned whilst the "celebrity" still has some shelf life in them until the next person comes along, when they will get placed on the back burner, being dropped completely by the record label or having to face a life as a Zeleb, and appearing on rubbish TV like Love Island or whatever ITV's next "let's waste cash on zelebrity crap" may be.
However, the best bits of the whole thing have to be the auditions. That's what I watch these things for - I really couldn't care less about whatever bad cover they're doing to get the Xmas #1, it's all about the (desperate) talent, or lack thereof in the first few weeks.