In terms of costs, yeah, that's exactly what they do. Someone's getting money for it, be it the land owner, the workers, the company providing the tech for it. Doesn't matter, there's always a person at the end of the cost pipeline.
workers pockets X owner's profit
In terms of inflation, this just doesn't help. Workers spend almost everything they get (living paycheck to paycheck), rich people do still spend the money (which means the money ends up in someone elses pocket) and yes, they will spend more than the average worker, but they also invest a big chunk, usually locking up the money, and at least temporarily taking it out of circulation.
Which reduces inflation, that's the point of high interest rates :)
Do you think there's a box you put cash into and it gives you iron ore back?
Nope, there's a miner who gets paid to get it out of the ground. The miner uses a pickaxe which costs something, sure, but who do you think made the pickaxe? It was a worker somewhere who got paid to manufacture it.
Money doesn't disappear, it goes into someone's pocket eventually, either through wages or through corporate income.
If costs are going up it means that someone somewhere is getting richer, meaning he has more money to spend, meaning things get more expensive.
That's just straight up not true. Companies like profits, so they'll keep raising prices as long as people keep paying them. If people don't have money to spend on shit, they won't, and thus the prices will have to go down or at worst stagnate.
But sure, keep thinking you understand the issue better than people who have studied everything about the issue and are actually paid for their knowledge.
If you want to learn zfs a bit better though, you can just stick with Proxmox. It supports it, you just don't get the nice UI that TrueNAS provides, meaning you've got to configure everything manually, through config files and the terminal.
Crazy that we can treat shit like this, well done whoever worked on the thing