Firstly, your post indicates a big problem with Steem: fear of being flagged for having a discussion. Flags are not there to punish people who's opinion you disagree with and on such a decentralised platform, people should not have to think twice about what they can and can't say.

The only effect witnesses can have on the situation you pointed out is by agreeing - or not - with proposed upcoming forks. It's up to the devs behind Steem to submit any changes in the way curation and the reward system works.