Since 50 Merit is the minimum, the voting power doesn't change much. Having to earning 9000 more Merits to go from 3 to 4 sharply reduces the power of more Merits.
I don't understand the decimal counts so I am going to put xxx.
When I am voting for Mr. A, he receives 3.xxxx
When you are voting for Mr. A, he receives 4.xxx
Mr. A will always prefer you over me on his campaign 😉
Anyway jokes aside, I don't have better idea in mind and I don't see it's a bad idea too. The only problem last two years we had were the merit sent by users and accounts (those were voting) were taking advantages from it. This year if we can prevent it, then that will be a huge improvement.