They might be entitled people or sociopaths.

Unlikely. The majority of businesses are bootstrapped with a loan.

Those that survive are often the result of an owner who had their hand on the wheel through some very desperate times, times which would have killed the business had they stopped micromanaging.

Are those the only people who terminate business deals “with friction,” sociopaths?

Disagreements are normal and leaping to words like “worst” or “sociopath” because one occurs is not going to produce a sustainable business IMO.