With respect,
They are designed just fine.....they are just blatantly disregarded. The fines and penalties are just not severe enough.
For example: There are HOS rules.....as seen here on BC....are blatantly disregarded. Now, if the penalty was say lose your CDL for 5 years......might....might be more persuasive...
Example: UPS mgt asking you to pull an illegal trailer-for inspection or even a light....."Go ahead we'll just pay the fine...." I've heard it many times. I've refused a trailer to see it show up right behind me at inbound. Dispatch just gave it to the next guy until someone took it...