X-Factor producers have to balance the appeal of the auditions process between seeing people who genuinely have real talent, and people who are utterly without merit, but think they are - which makes good TV.
Too much of either would simply be tedious, so they carefully edit a mix of both, to make the show borth entertaining, uplifting, inspirational, side-splittingly hilarious, tragic, and self-righteous - all in one episode.
If you can combine all of those in one hour of entertainment, youhave a TV hit - which x-Factor obviously is.