> You can fix companies by voting a government too

Indirectly only. This is typically also always too late; instead of doing "the right thing" in the first place, companies are disincentivized by regulation from doing "bad things" again.

Regulations are like scar tissue, they don't help against getting burnt in the first place.

Preemptive regulation typically sucks, and is admittedly extremely difficult to get right; most governments don't even bother trying.

Corporation know this and exploit it ruthlessly-- there are almost never consequences as long as they keep to the letter of the law, even when acting with intent, against better knowledge and causing astronomical damage to society (just consider the whole leaded gas disaster for an extremely clear example).