It covers all spectrums. Something like the original Clapton Strat was made for him to play and hopefully sell a few on top of that, designed firstly to make the artist happy. Something like the Wentz bass was a way for Fender to sell tons of Squiers by copying the bass he already had, Fender or Squier, and then asking him to play the Squiers as part of the deal. I can't imagine guys like Pete Wentz, Mikey Way, or Chris Aiken having the same deal with Fender as guys like Clapton, Steve Harris, and Geddy Lee.
PROTIP: If you KNOW you are right and everyone else is ALWAYS WRONG then please seek help from a mental health professional (and leave us out of it).