Daily transfer limit for Pre-registered 3rd party Transferee account with Bank is not allow to excess the maximum daily transaction limit with registered 3rd party account.
So caps on donations to individual candidates make sense: a "financial quid pro quo", or appearance thereof, taints a $1m cheque to someone running for Congress.
If the goal were to cap emissions at 30 billion tonnes in 2030, say, that would mean squeezing the behaviour of some 1.1 billion "high emitters" worldwide.