"if you're leaving artistic choices in the hands of someone else and aren't building your computer, DAW, and semi-conductors from scratch, all on your own, you're not much of an artist"
Because of course there can't be a cutoff point, with my argument applying to the level of involvement I described (if one's vocals are to be processed with autotune or some major effect is a major thing for a vocalist to leave to others, even level of reverb or echo will often be a thing to debate with the producer/engineers) and not to ridiculous meta-levels like building your own DAW.