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.

Promoting bullshit has real costs associated with it. Those bullshit crystals cost people money and don't do anything. People get dumber being convinced to buy them, and will use that dumbness in other parts of life. Promoting a market for delusion and false hope is the last thing anyone needs.

It might be hard to put a precise dollar value on second order effects like these, let alone on things like moral integrity, but that doesn't mean this value isn't there.

There is no shortage of people who will do whatever bullshitting it takes to earn more money, and that's not something to be celebrated regardless of whether it comes with mental health donations or another trendy atonement mechanism.