Well, that's fine. The interns don't have any useful skills anyway, they're not even up to the level of entry-level fresh grad. And 99.9% of them think programming is all about social apps or other web sites. If they go somewhere else to get trained at someone else's expense then there's no problem. Interns are a major pain to hire, you have to hand hold them the entire time because they have little idea how a corporation works, how their computer works, how to work independently without bothering everyone else. Or you get an EE intern doing a job requiring some programming and you have to waste time telling them why their program doesn't compile.
I interned at a start-up while working toward my S.B. EE/dual Ph.D. and left a self-made millionaire before completing the latter due, in no small part, to all of the contributions I had made, ideas I handed out, and so forth; one of the other interns there, who was also from my alma mater and working toward her Ph.D., also left a millionaire for the same reasons. Suffice to say, your comment about interns being worthless and having no skills is utter nonsense. Moreover, I'm sure there are plenty of students from places like MIT, CMU, Cornell, UIUC, Princeton, GaTech, Stanford, and Berkeley who could corroborate this assertion.