I agree that "good company" and "bad company" are a reflection of personal preferences, but the fact that FAANG comp is much higher than elsewhere tells us that the companies strongly suspect that a lower salary will not be enough to attract such a strong talent pool.
No. The companies feel they can afford to pay top drawer wages so they do so in order to hire what they hope is among the top talent, subject to among other things the randomness of their hiring processes.