Oh god, a deontic argument for slowing down self-driving cars. Yes, we choose to let several people die every day by not spending every available dollar on healthcare. Even then, we would have to decide where the large but still limited budget would be invested. There's no pure white way to get out of consequentialism. Might as well accept it and work with it rather than shutting your ears and singing la-la-la.

Sorry for the rant, for those that care for a reasoned argument along the lines of the above, Scott says it better than I ever could -- http://raikoth.net/consequentialism.html