Human wants are unlimited, resources are finite, therefore it is theoretically impossible for there to be no scarcity.
I think you're taking the idea too much at face value. Yes, it's called "post-scarcity," but that doesn't imply we're talking about a place devoid of human
wants, or even a place where scarcity
does not exist at all. NeuralKernel hinted at this fact:
...used by the fictional utopian society for the few things that were still scarce in a world of free energy, perfect biology and "replicators"... The best seats for a show, first puff of a joint, the attention of a talented professional, the apartment with the nicest view... whatever someone wants that someone else also wants is by definition scarce, after all.
...
If an issue ever comes up where only one person can have something then (all else being equal) the person with the high Whuffie score gets it.
(edited for relevance)
A post-scarcity world arises when self-sustaining technology provides the world, or the vast majority of the world, with the bottom tier of Maslow's hierarchy for free. When one doesn't have to work to
survive, but one
may work to create a more comfortable life for oneself, or to provide meaning for one's life. That's what we're talking about when we talk about "post-scarcity."
The person who makes the most money is the most altruistic because he gives people real goods or services in exchange for tokens, and the tokens are only worth something because he expects more altruism from other people in the future.
I disagree with this. Your statement
would be true of a world where consumers were perfectly informed and the only way to get money from a person is to benefit them. As it stands, though, it is entirely possible to trick a person out of funds. It is entirely possible to hold a gun to their head, both literally and metaphorically. This is a fine
ideal regarding what money
should be, but it does not match the reality.