Psychiatry isn't the cureall you're making it out to be. Numerous books have detailed the issues with the indsutry, namely cookie cutter diagnosis that's constnatly being changed, and the correlation between disagnosis and profit. Also, therapy and psychiatry are two entirely different things. A psychiatrist is a licensed medical practitioner whose main business is to prescribe drugs. A therapist does not necessarily have that license to prescribe, but focuses on counseling patients through symptoms. You're implying that the psychiatrist knows and feels exactly what a patient's problem is - you'd be right if it was just a therapist. It's not the psychiatrist's business to coach patients through therapy, it's the psychiatrist's business to see whether it would be possible or not to write a prescription based on the DSM (psychiatry's combined checklist of mental disorders)
In OP's case, psychiatry is not working because the problem is more fundamental. He's a professional with a great degree but who is being told he is fundamentally broken. No amount of antidepressants cures lack of drive, motivation, or status in life. Believe me when I say I wouldn't be making such a recommendation if I hadn't been through much of the same before.