1.The Scarcity Model: A single uniform quantity in limited supply made valuable by its own scarcity.
In other words, the value of this type of money depends on the supply of, and demand for, the money commodity itself. Conventional definitions of money define money only in terms of this model, a "medium of exchange". Examples are: cowries, gold and silver, fiat cash and coins, bank credit, and now, in the model's purest and most spectacularly speculative form, Bitcoin.
2. The Abundance Model. A promise of something specific from someone specific made valuable by its redemption in real production. The value of this type of money is defined by the promised redemption in goods and/or services. As such, this type of money is promises of an indefinite number of non-uniform commodities in indefinite supply and, unlike the limited quantity "coin" concept of money, the total quantity of these credits in circulation does not affect their value, because the value of a credit is defined by what its issuer will redeem it for in real goods and/or services. Examples are: business-to-business barter credits, customer rewards, travel points, discount coupons, mutual credit systems.
The second type you called abundance, but goods and services are scarce. This is why they are traded by scarcity-based commodities. You cant have 1 billion hours of quality devs as a redeemable promise.
Also, i disgaree that fiat money is under a scarcity model (look at QEs).
But in ripple both worlds are possible. People can create both kinds of tokens in there.