Maybe, maybe not. Not everyone is killed by an aggressive/careless driver, but there are more aggressive/careless drivers out there, some of them will be so as a result of cyclists. there was a great post on it at the beeb a while back by a psychologsist from Sheffield University. Cyclists offend the moral order "Now cyclists reading this might think ?but the rules aren?t made for us ? we?re more vulnerable, discriminated against, we shouldn?t have to follow the rules.? Perhaps true, but irrelevant when other road-users see you breaking rules they have to keep." Just because you find a truth offensive doesn't make it less true. Negating the rules that are there for everyone cause a downward spiral whether you like it or not. They make society worse. Those rules are there to promote order across the board, if a section of society decides they don't apply to them then that order suffers entropy which means more chaos as a result. So yes, anyone who disobeys the laws of the highway contributes to the fall out.