My god, it's like you just got training wheels.
Critical thinking is not like computing in anyway. And "garbage in/garbage out" is in no way specific c to databases, be it it oracle, SQL, MySQL, db2, Informix, terradata, exchange or something else.
You're trying to make a point when you don't even understand the concepts. I don't think you even understand the argument beyond "Viviane did something once that hurt my feelings".