I remember reading this during calculus. My basic understanding is that it is useful to explain conservation of a quantity. Can you explain the physical/ historical significance of this theorem?

This is a leading question. While I appreciate the sentiment, the question makes multiple assumptions and provides no reference/evidence. The question just wants to polarize the readers.

Is this expectation unreasonable? If consumers look for a monopolized service then won’t that service attempt to exploit the users? Just thinking out loud. I don’t know what the solution is.