Patents
do nothing more than grant you the legal right to sue someone. There are no "institutionalized restrictions". Government does nothing. Patent lawsuits can cost you (the inventor) hundreds of thousands of dollars.
It is your responsibility as an inventor to either do a patent search on your own or hire a qualified patent professional to do it for you. You must determine the "Unobviousness" of your work.
This should be done as close to the conception of your idea as possible to avoid wasted effort.
Your feelings might be different if it was your patent being infringed upon.
I agree. The system sucks.
RobVG