> and will, one day, kill someone

Statistically this is not true.

And for what it's worth, there's a huge difference between driving fast while consistently hugging the left lane, and weaving through traffic. In doing the first, I'm not causing nearly as significant risk as you suggest.

Driving fast will not cause my car to suddenly spin out of control, the only way I'll end up hitting someone is if they decide to suddenly veer onto my lane without signaling.