Its not their laws, its their enforcement and penalties.
Something that you can;t understand, but when people are faced with the possiblities of losing their lic (possible their jobs, huge fines, huge increase in insurance premiums) the option of running becomes much easier to justify.
The problem is that in your world, cops do not abuse their power but the reality of the fact is that they do. Read the threads in law section about guys getting booked for accelerating to fast but still under the limit, lane splitting etc.. and then consider the sgt that was allegedly handing out bogus 172 charges.
I am neutral on the issue, only difference is that I can see both sides while you are blinded and can only see one.