Wouldn’t your comment equally apply to being a small business owner (let’s say blacksmith) under feudalism? As a good blacksmith, you will earn more clients and prestige, while poor blacksmiths won’t get repeat business. You might be able to expand your forge and hire more people to do the tedious work of making chainmail or whatever.
I don’t know that anyone can ever provide an “objective” source on capitalism. Anyone who writes on the topic has inherent biases. Here are a few: https://www.amazon.com/Democracy-at-Work-Cure-Capitalism/dp/1608462471
https://www.amazon.com/Slow-Down-Manifesto-KOHEI-SAITO/dp/1662602723
https://www.chelseagreen.com/product/doughnut-economics-paperback/
https://www.amazon.com/What-Wrong-Capitalism-Ruchir-Sharma/dp/1668008262
https://www.amazon.com/There-Are-No-Accidents-Disaster_Who/dp/1982129689
https://www.amazon.com/Deaths-Despair-Future-Capitalism-Anne/dp/0691217076
If cost is the main issue, you can find a refurbished slightly older Eufy model on Amazon for $80, which I would consider well worth it. I have two dogs and I pull a large handful of hair out of my robo-vac every day.