I think the right to vote should be divided up based on issues. Are you not a business owner? Then you don't get to decide the rules businesses abide by. Are you not a worker? Then you don't get to decide the rules workers abide by. Are you not a soldier? Then you don't get to decide anything involving foreign policy.

You can then break it down further than that. If you're not a farmer, you don't get a say in farming regulations, retail for retail regulations, etc. The devil is in the details of course and you'll run into the problem of who gets to decide who is doing the deciding in each particular case, but it makes the relevancy of the vote less ambiguous and prevents people who don't bear the costs from having a say in policy.