I'd say our profession can remain professional as long as pilots are prepared to honor agreements they make. If you can't live with the consequences of your actions, think twice about what you're doing. Ego and arrogance are classic personality traits for most pilots, making us our own worst enemies. You're whole sob story below is raw emotion and biases clouding reality.
Actually, not my sob story. I am old Hughes AirWest but I am use to it. There are NWA pilots here who were hired months before the Republic Merger at NWA who resent that I am a 74 Captain even though I was hired a decade before them. Hey, If I hadn't aged during that 10 years I was out flying my a$$ off, I would gladly trade them my position for being 10 years younger. They get 10 great years of ALPA and this profession after I am gone, though. I never counted on anything other than I would have 36 years, or 41 if the rule changes and over those years the guys in from of me on the seniority list older than I was would retire and I would move up a number. Only God knows whether that equates to 747, 757, A320, etc., but I never wanted or expected to leap frog anybody who had been at this airline longer in that pursuit.