No, don't blame the lawyers. They are only doing what they are paid to do. Doesn't mean it's right, but that's their job. If they didn't push even the groundless suits on behalf of their clients, they'd be sued by them.
Part of the blame falls on human greed, and there is not much that can be done about that.
More of the blame belongs with our legal system, and with dumb juries. The juries who, on looking at someone's injuries, decide on that basis rather than on liability. Get smarter juries, who have the guts to say "You are a real dumbass and that was a real dumbass lawsuit and you get nothing". And who have the guts to then say "And because it was such a dumbass lawsuit, not only do you get nothing, but you and your lawyer are going to have to pay the legal expenses of the person you sued". And a legal system that will allow them to do so.
Yeah, I've heard the arguments against that sort of system. The worry that large corporations (such as the tobacco companies) would deliberately incur astronomical legal expenses that would scare off anyone attempting to sue them. But I'm not suggesting that the loser always pay - only when the lawsuit is deemed frivolous and without merit.
Chasing ambulances when they have the right to stop and back over you wouldn't be much fun.
John Martin