You can't make people do what is not in their (perceived) self interest. If you give people the option to get 100% possible curation rewards just by staking, but in doing so lose the ability to affect the votes for rewards, they will choose to stake if they don't care to vote.
And yes, at least one of the people who talked about exactly these two things, was me. As @l0k1 or @elfspice, my two former steem accounts.