I disagree. Someone in the US has a few beers too many and decides to drive home. He knows the risks. He knows it's illegal and he knows there's a cop on every street corner who could pull him over at any instant, then bam! He loses his license and very probably loses his livelihood.
Not so in the DR. Road cops (AMET) don't work nights, don't have equipment to test drunk drivers and frankly are not motivated enough to enforce the law. Drivers can literally get away with murder in this country.
Sad but true.