Foodies are fanatics.
Like techs and musicians they care about their work and that it’s done properly (ie, exactly their way) and they believe that results count. Fanatics, see? Unlike the rest of humanity, fanatics do their stuff not to pay the bills and put a bit of cash aside but because it matters.
Take marinades. Sure; you can flavour meat with sauces and tenderize it with hammers but that overnight soak is the difference between a motel and you own home. Fanatic? Perhaps. But I’m also a people person and marinating simply works; especially with vocal chords and thumbs.