I understand the suggestion of imorality levelled at recuiters giving careers talks to students at OATS. However it happens in every industry. What about companies who give presentations to undegraduates of any College or University. There are unemployed engineers, teachers, accountants etc, but it doesn't stop recruiters trawling the educational establishments around the World for potential employees. Having said that, much of the time these companies are merely agreeing to requests from colleges to make encouraging talks to help motivate students.
Tough to take though if you are an instructor looking for an airline job.