Sure, the question of whether the philosophical truth is often harmful to society is an empirical one. I think the fact that the public prefers cheap substitutes for philosophy, such as exoteric religion, consumerist ideology, and the neoliberal self-help fad is evidence that that discipline is generally harmful, given the state of most people.

But my last comment wasn't meant to refute what you were saying as much as clarify what I was saying.

Why do you think philosophical truth isn't harmful? Obviously, it depends on what that truth is supposed to be. I'm assuming naturalistic philosophy which I think has atheistic, existential, cosmicist, and perhaps pantheistic implications.