Lawyers do not convict anyone. Judges and juries convict people. Yes, if an attorney is able to make a convincing enough argument to a judge or jury that someone should or should not be convicted then someone who is innocent might go to jail, and someone who is guilty might get off. However, it is not blatant, as you seem to imagine.If a lawyer can convict a person who did not break the law, he has every right to. If he can get a person off who obviously broke the law, he has every right to.
The law IS the law. It is not all BS and manipulation although yes, there can be some manipulation. You are watching too much TV.So, the law is not the law. Bs'ing about the law and manipulating people about the law is the law of the land.
Yes, its generally safe to go no more than 5 miles over the speed limit. Why? Because there are not enough policemen in the world to catch every driver who drives 5 miles or less over the speed limit. That doesn't mean that someone will NEVER get pulled over for that. It just means it's unlikely.As I said, quoting laws is for selling something to the naive. Example: Try warning someone about going 5mph over the limit. They will laugh in the face of your quoted law, that you say "is what it is," because they are not naive.