I think the US is a land of "extreme" personalities so I would guess that across a broad range of metrics (alcohol consumption, wealth, number of text messages sent per month), the ratio of the Top 1% to the median is probably higher in the US than in most other countries that the US considers "peers" (i.e. Western Europe, Australia, and Canada).
Statistics as detailed as "alcohol consumption by percentile" are hard to come by, but the data doesn't point to armchair just-so psychology like this.
Using some proxies for level of extreme drinking: The US isn't in the top 15 for binge drinking and is below the OECD average[1], and is ranked 50th globally for alcohol deaths (with far fewer than all 3 of OP's mentioned countries). This is despite a healthcare system with more gaps _and_ much higher risks from drunk driving due to being sparse and more car-oriented.
