"So you take into account the positive effects of mental health donations but not the negative effects of the promotion of healing crystals. No shit you'll come out ahead."
Ah, I see how my comment can be read like that.
I don't mean to say "only consider the positives of one and not the negatives of the other". And "the existence of negatives means the thing is negative" would also be a bad way of thinking about it.
The approach ought to be "The benefits should be weighed against the costs".