I feel called on to the board.
I find the idea of using RC as a form of incentive weird considering RC "value", both current and historical. There is no "RC economy", operations on chain are basically free. It only serves as a safety mechanism, to prevent individual users from attacking the network. In practice most users never run out of RC, even rank 0 (free) accounts drop their RC level dangerously low in less than 5% of cases. For rank 3 accounts (minnows, like me) that are dominant in on chain activity, it is not even half of basis point.
curl --request POST --url https://api.hive.blog/ --header 'Content-Type: application/json' --data '{"jsonrpc":"2.0","method":"rc_api.get_rc_stats","params":{},"id":1}' | jq ".result.rc_stats.payers"
It is not to say that everyone can do everything. Some operations, even posting lengthy article, can be too much for free accounts, to create new account you need to be at least rank 1 (but many people graduate to rank 1 after claiming rewards from their introductory post), to think about claiming free account tokens you need to be rank 4 (dolphin).
Free account tokens are pretty much the only thing that has some monetary value and could serve as form of incentive. The problem is, it would be unsustainable if actually used. Even now the account token resource pool is kept between 5 and 10% of the equilibrium level.
curl --request POST --url https://api.hive.blog/ --header 'Content-Type: application/json' --data '{"jsonrpc":"2.0","method":"rc_api.get_resource_pool","params":{},"id":1}' | jq ".result.resource_pool.resource_new_accounts"
When one is claimed, it takes 13 blocks to fill it back to the same level. Such low fill level makes the price very volatile. Especially considering that it is cheaper for whales to claim them in bulk (because the price only changes at the end of block, so if you claim 100 at a time, all 100 will have the same, lower price). So you might occassionally see it for 10T RC (cheap), but next block the price can shoot up to 3 times that. Also if you consider that RC is a manabar - "use it or lose it" - if you don't have max RC large enough to hunt for reasonable price, you might be forced to claim tokens when they are (relatively) expensive or "waste RC regeneration". If more people started to claim the tokens, their price and volatility would only increase. All that makes free account tokens pretty lousy incentive.
From technical standpoint channeling part of RC cost from transaction payer to some other account should not be very hard to do, however in my opinion it would make more sense (if ever) after introduction of RC pools because a pool is designed to be constantly drained, so it has higher chance to have "free space" to add external RC. There is also a blocker - RC is not (yet) part of consensus, so adding changes to consensus protocol for RC is a no (like adding new operations).