Here's a way to boost masternode voting. If a masternode doesn't vote on at least one proposal in a given month, it gets a demerit. If it accumulates two demerits it gets booted off the masternode payee list. The masternode will have to restart, so the 'punishment' for not voting is being pushed to the bottom of the list, at a minimum. I like this method because it discourages passive/boomer entitlement behavior.

If I know I'm going to have to break out the hot wallet every other month to restart a masternode that got kicked off for being lazy, then I might as well break out the empty wallet and vote on a few proposals instead.
Voting is a new part of being a responsible Dash Masternode Manager, and there will probably be more responsibilities down the road requiring active participation to maintain this prestigious position.