I'd argue that's only valid if you're a small company.

Once you're a huge corporation with tons of stakeholders, it seems inevitable that you will compromise customers in favor of profits sooner or later.

I feel like this attitude lets big companies off the hook in a way. Yes, as the company grows it becomes more likely that they'll make these compromises, but that doesn't mean it's inevitable.

Shareholders will vote in someone who will compromise.

I didn't read that as letting big companies off the hook. Just the opposite, I read that as a strong condemnation of big companies.

While I agree it seems like it lets them off the hook, that's not on them, it's on the society that shrugs that off as "normal".

But if you follow the logical path from capitalism, it is most definitely inevitable. There is no way to maximize profits without hurting the users.

If one company does the right thing, another will take it's place because it will generate more profit.

Can you imagine a CEO constantly telling it's shareholders that they will not increase profits because they want to "treat customers more fairly"? He'd be sacked in the first opportunity.