The first capitalists hated rent. They wanted to replace the “passive income” that landowners got from taxing their serfs’ harvest with active income from enclosing those lands and grazing sheep in order to get wool to feed to the new textile mills. They wanted active income — and lots of it.
Capitalist philosophers railed against rent. The “free market” of Adam Smith wasn’t a market that was free from regulation — it was a market free from rents. The reason Smith railed against monopolists is because he (correctly) understood that once a monopoly emerged, it would become a chokepoint through which a rentier could cream off the profits he considered the capitalist’s due