They just want the money and the increased tax revenues.
There's a pretty ridiculous statement. But, you continually advocate against the permits and inspection process on this site. Convincing you of the merits of the inspection process is apparently impossible, but I find it incredibly irresponsible to spew such nonsense on a site geared for DIYers. Go in the ICC's web forum and look around. You'll find nothing about profit, revenue or taxes, but you will find thousands of inspectors concerned for nothing other than the safety of the occupants of the buildings they diligently inspect.
Someday when you go to sell your property, all the work you've apparently done without permits is going to bite you in the butt.
As for taxes, welcome to America. America is capitalist, not socialist. You have to pay to play. You want a nice car, you're going to spend more than the guy with an old clunker. You want a big house, your taxes are more than the guy in a small house. If you make your $200,000 house worth $240,000 by remodeling it, our capitalist system dictates that you should pay higher taxes. And, fact is that adding a mechanical system to your home that already has an HVAC system and heated water won't increase your taxes anyhow. The county appraiser is only going to take interest in substantial additions or remodels that increase the value of the property substantially.
The City's zoning rules about heights of structures are there for good reason. Left unchecked, people will erect towers of all sorts, tall buildings, giant antennae, etc. People have to live next door to that, and that's not fair or good for the overall appearance of a residential community. Being green is possible without driving down property values in your area by erecting your own wind farm in your back yard.