Transference doesn't matter, because exchange is not a requirement for gain. People get things merely from having prestige/influence/power all the time. It's sometimes called an award, and sometimes called tribute, and sometimes called currying favor.

> you can sell the bitcoins

Prestige is influence, and you can absolutely sell the use or effects of influence.

> There are exchanges that declare their exact value.

Payment does not need to have exact value, just non-zero expected value, which prestige definitely has. There is no exact value to startup equity either, but it's still rightly considered to be compensation for investment of labor and money.