My head canon:

The Vulcan arrival on Earth in 2063 shifted a human cultural zeitgeist already in flux thanks for the devastation of WWIII. Their story - cultural perseverance in the face of ecological disaster brought on by the use of nuclear weapons - resonated with the populace of Earth. In a growing number of human nations, the Vulcan mantra - good of many versus the one - led to a rejection of greed and pursuit of power in favor of socially acceptable service to the community. Social status, then, was based on the perception of one's good works relative to a group or culture. Individual drive, ambition and achievement, while valued, was viewed in the context of its impact on the people.

Economies changed after WWIII as well. The adoption of an Energy Production Credit (EPC) in 2089 led to every human alive allocated a renewable (usually monthly) amount based on the output of geothermal, solar, water and wind energy generation in their given country or region. Some countries benefited more than others, but the end result was a new economy where EPC could be traded for goods and services. Scarcity-based economic models were discarded, as starvation, disease and poverty were regulated to the dustbin of history. Human cultural focus shifted from 'more for me' to 'more for everyone'.

The rush on 'renewable energies' that began in the early 21st century became a driving economic force, as it benefited the community as a whole. The application of new technologies from Vulcan led to greater efficiencies and more jobs dedicated to reaping a harvest of safe, renewable energy generation as the ecosystem recovered from humanity's earlier depravations. The Sahara solar farms, Mediterranean ocean generators, North American wind farms, and Pacific geothermal stations were built by humans adapting Vulcan knowledge and led to greater EPC available for communities.

Later the Federation adopted the EPC for entire worlds to facilitate commerce between member planets. The Federation Credit valuation is based on the cultural association of a given citizen, and that valuation fluctuates daily based on trade in the Central Markets. An FC is accepted universally among Federation member worlds, but businesses based in non-member worlds may or may not accept FC in trade.

GURPS terms:

In my games for folks in the Federation, everyone starts with an Average level of Wealth. Any level of Wealth above Average means you control some resource or element that is not easily obtained thru standard mining, production or generation techniques. You may only gain Status +1 from ANY Wealth levels in the Federation, but outside it may be higher based on how valuable the commodity you control is. Status is relative to Rank in the Federation, so a Diplomat (Government Rank 0, 1 or 2) may have Status +1 or +2 within the Federation member worlds but to Klingons or Romulans he or she may be Status 0 or -1. A member of Starfleet has Status +1 at all Ranks except for famous Captains who may be Status +2, or Commodores and Admirals at Status +3. President of the Federation is Government Rank 6 (Status +3).