Missouri is 17th on that list. Another way to put it is "average" because that is firmly in the median quartile ranges. It's 21st when you look at traffic deaths with DUI involved. Average.
Even with that being said, there is nothing about those numbers which prove either of our points. If you even take a cursory glance at which states have higher DUI deaths it's almost always the states where people don't use mass transit. Top 5 include DC, Mass, NY, NJ. Easy access to public transit doesn't mean that people weren't drinking, and possibly more heavily because they knew they wouldn't have to drive.
Your definition of fair prices and mine are vastly different because you believe alcohol should be punitively priced to dissuade use. I completely disagree. Alcohol should cost what the markets say it should cost. The government can tax it up to a point without much consequence, but when that point is overcome there will be enough people willing to circumvent the law that black markets will be sustainable. Alcohol is not hard to make. I could literally do it in my basement tonight with copper and brazing materials that I already have.
It's none of my business what people drink or don't drink. If they want to drink St. Ides for 50 cents then they can go for it. They're only hurting themselves by not drinking responsibly. When they do anything that violates someone else's rights, that's already against the law, and charging $1.50 a can won't make a bit of difference.