One of my pet peeves is that most bicyclists ignore the laws of the road, cause me to take action to avoid hitting them, and need to be fined. When I'm riding my bicycle I follow the laws; and ironically I've been the one hit by an auto. It's just too dangerous out there and having drivers & riders that just 'do what they want' does not make it safer.
I have had similar observations. I'm addicted to road cycling. When I'm on a bike I'm almost hyper aware of what is going on around me. I'm well aware, like almost every serious rider, that being correct as far as the right of way spelled out in law, means nothing if you are in a collision with a car. When I'm in a car I am diligent when I observe a bicycle and give them all the respect for their safety that I can. In spite of this, I've had several incidents of bicycles not following traffic laws coming out of nowhere, resulting in very close calls. What are the odds of having a serious accident in the future? Too high for my comfort, at least.
I live in a town with lots of people on bikes. The population is physically active and in a beautiful outdoor setting. Many ride their bikes to get to work, go to the grocery store, and run other errands, due to the high cost of rent, gasoline, food, and everything else. This is the norm in resort towns. Many of these riders ignore traffic laws when they throw that right leg over the frame. I think that law enforcement should deal with every bicycle violations they see unless, of course, they are enroute to a more urgent situation. Sometimes the violations become so prevalent that it takes a focused effort to address them.
Using the logic of not doing anything unless it involves a serious crime is a slippery slope. We could then say that only violent crime should be addressed and that such things as burglary and embezzlement are unimportant. We could say that murder isn't really important unless it is connected to a serial killer or terrorism.
I've observed a common response among violators of "why are you making such a big deal out of this, I'm not hurting anyone." I've heard that for violations such as "peeping toms," not paying for a campground site (this is really shoplifting with similar monetary values), parking in front of a no parking sign in a red painted zone, pulling 40 fish out of a 2 acre lake, ripping up a meadow with an off highway vehicle, bull dozing a road up a stream bottom, and cutting down 250 year old trees. They all hurt someone or something and I did not deal with it unless that was true. Like all people charged with enforcing the law, I did not have time to deal with something unless the violations had unacceptable consequences.
I once thought that parking violations were a nuisance and not deserving of my time until I transferred to a high use Ranger District where I soon saw a situation where an engine and paramedic unit could not reach the victim of a heart attack without substantial delay because illegal parking had narrowed the route enough that the apparatus could not pass. Later I observed that once parking is out of control it causes gridlock, not just occasionally but every single time, in the locations I had to deal with. Gridlock can takes hours to unravel, where staying on top of the situation by issuing citations, contained in those sticky plastic envelopes that have "Violation Notice Enclosed" in large letters on an orange background hung on offending vehicles, can prevent it with only 10-15 minutes of work.
The purpose of any citation is to cause people to look at their behavior and hopefully make some changes. Often times, a violator cannot understand the consequences to other people that result from a violation. This can result from of a lack of awareness or because they really don't care about anyone else. People with chronic selfishness are guaranteed to have regular contact with law enforcement. Often the insight of looking beyond oneself comes with maturity. Whatever is the case, I believe that citations have saved more lives and prevented more injuries than can be accounted for.