This is interesting to me. I'm probably one of those "dangerous drivers" you're referring to. I almost uniformly drive at 5km/h under the limit (I do restrict myself to the "outside lane" however).
My rationale is simple - I've been driving 9 years with 0 traffic fines. I'm in no great hurry to get from A to B, so when other drivers tailgate me I just smile and wave.
Would it be systemically safer for me to drive at the same speed as everyone else? Probably. Do I want to blow 90% of my disposable income on traffic fines? Not really!
Even a minor fender-bender will probably cost you more then all traffic fines you can collect before losing your license. So, you're increasing the chance of blowing well over 100% of your disposable income on dealing with an accident (not to mention other risks).
My rationale is simple - I've been driving 9 years with 0 traffic fines. I'm in no great hurry to get from A to B, so when other drivers tailgate me I just smile and wave.
Would it be systemically safer for me to drive at the same speed as everyone else? Probably. Do I want to blow 90% of my disposable income on traffic fines? Not really!