I agree with the findings of the survey as a business man myself. I am a moderate drinker and drink for the pleasure rather than the business aspect of drinking.
However I can see a lot of business taking place at such sessions, by which even i have benefitted.
Agreed that Alcohal is not acceptable to many people and trying to justify the habbit with a business perspective is not right, but one cannot disregard the business benefits of it. People involved in exports, especially to westeren countries and particularly to europe can testify its usefulness where drinking is a part of the culture. It definetly helps in creating a personal touch to the relationship with your client/principal.