What contemporary economic ideology has taught me: If it sounds too good to be true, it usually isn't. And the Venn diagram of scams and business is almost a circle in a sense that companies and criminals don't have your interests in mind. There's really no reason to trust either.
> If it sounds too good to be true, it usually isn't.
it usually IS
Different bracketing.
"If it sounds too good to be true, it usually isn't (true)"
vs
"If it sounds too good to be true, it usually is (too good to be true)"