Your right that educating people is the first step. But since there are over 17,500 people a year that die from alcohol related accidents, the education isn't strong enough or there just stupid. We need something better to help fix this problem.
Apparently death or life in prison is not enough to scare people when they are drunk because someone is still hit by a drunk driver every 30 mins (by statistic). Well some people say "well, they learned their lesson because now they are sentenced to jail for life or die due to the murder". Big missing point is the fact that someone INNOCENT is now dead. So...can we spare a innocent person or people each time there is a drunk-driving related death to attempt to rid us of drunk drivers?
I agree with you Scott how we need to educate people more. However, I think a good amount of people that caused accidents due to being drunk normally are good people that have strong opinions towards drinking and driving and have had proper education. We all have seen how alcohol can change someones judgement...(I sure have...we called her 'the bear'

), so there needs to be something else...or we just will continue loosing people as we are now.
But I suppose your right when it comes to the fact that people would begin to disable the features anyway. So we are just going to have to cross our fingers and hope we don't get hit by those DD's.