I would say that the more-exhausting way to live would be to be unaware of this, to accept the “we’re a family here” lie at face value, and to be passed over and screwed over at frequent intervals without knowing or understanding why.

You don’t have to go full Patrick Bateman corp-bro, but keeping in mind the phrase “we don’t fire family” and adjusting your approach based on that counter-example can help you to keep things appropriately transactional and not be taken advantage of.

The least exhausting way to work a job is to find people to work with who are smart, well adjusted, and genuinely interested in cooperating to make money together.