That is why you create laws that spell out in no uncertain terms what is/isn't allowed. Take eminant domain, if you are going to allow it you either state that public use is for government buildings, roads and parks (nothing else) or you say that it may be used to give to developers for malls, etc. No grey areas, no way to pervert it.
"That is why you create laws that spell out in no uncertain terms what is/isn't allowed.....No grey areas, no way to pervert it."
Sorry, I don't think thats possible. Even if it were, they would just change the law to let them do what they wanted. IMO you're making an assumption that the people making the laws are honorable. Certainly some are but many are not especially those who have been in office an extended period. Let's not forget that we haven't even established the meaning of the work "is".
We are dependent on the people we elect and any amount of work by us is still dependent on them. They create, enforce, and interpret the laws. Some clerk with an agenda puts some awkward working in and then some senator doesnt even read the law. It happens every day.
The people must remain vigilant and involved.