Which, when you think about it, is just a backhanded way of disqualifying women.
So, with that established: Why do people make critical business decisions in bars?
* A social outing lets people pretend to be friends, and to act like friends, while skipping the months and years of effort it takes to actually become friends. It's an "act the part, be the part" trick.
* Intoxicants create a polite fiction that allows people to be direct and blunt in a way they can't in a formal business setting, which expedites dealmaking.
I do however think it make for a bad move if a taxi company has a open bar for cab drivers who is on the job. Its a design for disaster. The taxi company would have made a bad decision, and the drivers are still 100% responsible if they drive drunk. The one do not exclude the other.