I think you might misunderstand me. I'm not saying that the only way to attain power is through wealth. Im pushing back against your idea that since an individuals wealth isn't cash, it's not worth accounting for. It may stop making sense to count, but only in the sense that it literally becomes incomprehensible to, and at that point it is long overdue to say it is too much. The vast power those people have is due to their net worth. Because someone else has vast power without the wealth doesn't contradict that fact.

Also I don't really see why you're tying up your freedom with billionaires, as if it is a binary choice between billionaires and personal freedom or no billionaires and tyranny. That's a bit of a strange equivalency you draw. In any case, and in practical terms, you* probably don't even have the freedom to be in the presence of the wealthiest of wealthy, let alone fart in front of them.

*assuming you are not ultra wealthy or somehow related personally to a member of the ultra rich

Edit: in other words, billionaires don't grant you your freedom -- and their freedom to extract capital and accumulate vast amounts of wealth probably has little bearing on your right to your house or personal property. In fact, they are far more equipped to seize things like your land, your data, your means of subsistence, than you are to defend them.