True, but you could say the same of pretty much any sort of antisocial behaviour. Blaming the individual without addressing the cause is pointless, but we need a more effective way of dealing with the problem. London has a vastly disproportionate rate of ambulance callouts, even though it's far easier to make one's own way to a hospital in a city with a variety of transport options than it is in the back of beyond.
Also, if you're working in a hospital, you presumably only come into contact with those the crew have brought in (not talking about the patients who just rock up, obviously). Those who call for an ambulance in order to have a wank in front of paramedics, for example, are a sub-group who rarely get taken anywhere, apart from possibly to a cell for the night if they're worse than usual. If you can't call them dickheads, who merits the word?