I'm not sure that changing the percentages really does enough to address the underlying problem. I spend hours writing and formatting my weekly posts, but on average make more from curating than from my writing (which in itself is a problem but that's another topic of discussion altogether).
I feel like my close to 800 SP is a decent sized investment relative to my crypto portfolio's net worth, yet I'm still a minnow and 800 SP is a drop in the bucket compared to what I would need just for my vote to be worth a dollar. Only a handful of people can afford to invest enough to make a decent amount from curating, and it shouldn't be that way. You shouldn't need to invest thousands and thousands of dollars for your vote to become meaningful.
I say rather than fiddle with percentages, more needs to be done to redistribute SP away from the whales and even out the distribution, so that regular people can participate and feel they are having a meaningful impact on the community. I know this process is ongoing to a degree with power downs, but it's a slow process and I wish something could be done to accelerate it.