What I feel is the most fair thing to do is have network influence be based on stake length *stake amount. This allows for someone with 50k HIVE to have the same influence over the network as the person with 500K HIVE if the person with 50K HIVE is willing to stake for 10x the length of time.

The Polkadot blockchain is implementing this design for on-chain governance, and I think its a great way to do it. This allows people to have a larger share in decisions if they are willing to stick it out longer. I believe it would be good for the price too, because I bet you'd find a lot of people locking up their HIVE for years in order to have more influence.