"so why should the 1% authors receive more than the 99% lurkers?"

Well, the obvious answer is 1 author provides more value than 99 lurkers. Or 999 lurkers. Or 9 million lurkers. Lurkers are useless.

Curators are not lurkers, they are hard workers who can't be differentiated from lurkers by 99.9% of us other than by stalking the steemd page and looking for votes.

I'm defining lurker as non-author who doesn't vote.

I fully agree that curation should be more rewarding, but perhaps something between 25% and 50% would help. Maybe a small portion of the pool each day could be set aside as a boost to curation payouts. Perhaps the formula itself needs changing.