It is named bitcoin. The first line of the paper you cite: "A purely peer-to-peer version of electronic cash would allow online
payments to be sent directly from one party to another without going through a
financial institution."
I'm not sure how you can say it was only meant to be a store of value with a straight face. I don't know whether to question your sanity, your reading skills, or your integrity.
Read https://bitcoin.org/bitcoin.pdf. Read section 6, incentives. Note transaction fees. Read the conclusion. Note "We have proposed a system for electronic transactions without relying on trust." None of this has anything to do with being a currency, or being low-overhead.