In a nutshell, $RIF purpose is to enable value capture of $BTC C and it runs on Rootstock sidechain.
It powers:
▸ Incentives (in#BTC and $RIF )
▸ Ecosystem growth for builders
▸ Infrastructure like USDRIF and RNS
▸ Governance via RootstockCollective
▸ Interoperability - available across major exchanges
The flywheel can be seen on graphics below.