Now come on people get a grip! Why are you, and you know who you are, terrorising bollard cleaners for earning a wage. So what if its more than you earn? If you want to earn that much then why not join them?
If you think that the wages for street sweepers, line painters and bollard cleaners are too high then take it up with their employers and let the workers get on with their job.
Here is a question for you. Why don't you go hurling abuse at those train, gas, water and over paid fat cats for collecting bonuses just for turning up and delivering poor services? The answer... you're rare end would be hauled into jail so fast your necks would take years to catch up.
Stop picking on the weak or pick on everyone.