"Science" is as "science" does. We will know them by their fruits.
When their fruits are lies and only a few manage to call them on it, we can quite readily rank "scientists" alongside "charlatans", "witch-doctors", "snake-oil salesmen" and "congressmen."
I leave out "used-car salesmen" because they serve a useful function. Line all the rest up against a wall and shoot them, if only to eliminate their carbon footprint.