First, I would refer you to masto's comment some ways up for a hint why I posted.
Second, I do not condone such behavior. It is flat wrong, whether done by a coder or by a pilot or salesman. A conference that lets guys get away with this without losing their credentials is at fault.
Third, I do not think that the seriousness of any occupation is a guarantee against bad behavior by its practitioners. It does not take very wide reading to encounter thoroughly bad--criminal behavior--on the part of doctors, for example.
I spent years at university (at great cost) and countless long hours because I genuinely believe that this is a serious profession on par with a doctor or scientist. And I for one am sick of these stories coming up again and again and being dismissed by people such as yourself again and again.