Breaking The Code To The Catcher In The Rye discussion

Was Salinger's intention of writing the Catcher in the Rye to high highlight mental illness? Was this something that the medical industries wanted to push? By highlighting Holden's seemingly anti-social behaviour, perhaps they could make people more accepting of taking another pill for that.

This is what i am taking about:
http://www.dailymail.co.uk/health/art...
The growing use of drugs to treat extreme shyness has alarmed some experts who say pharmaceutical companies and doctors are ‘medicalising’ normal human behaviour.

The concept of ‘social anxiety disorder’ or ‘social phobia’ has entered mainstream medicine in the last couple of decades after the drugs industry began to promote it.

In the late 1990s and early 2000s, the amount of money spent on social anxiety drugs doubled, while in the last decade around £1.5billion has been spent on the condition.

In J.D. Salinger: A Life the author says that Salinger was offended when a publisher asked if Holden Caulfield was crazy. Salinger requested his book back from that publisher. Obviously they just didn't get it.

In my opinion it is the people that Holden comes in contact with that are mentally ill, because they are treating life as a game rather than living authentically. We see Holden also having to "play the game" but making snide remarks about how foolish he thinks they are.

On the other hand could Salinger be trying to highlight PTSD for those like himself that had suffered from serving in the military?

What do you think?