Alphinaud acknowledged his misgivings and that he was getting ahead of himself at the end of ARR and post Heavensward. Unlike other scions you're the warrior of light an ancient legend existed to thwart enemies and save people so in an essence you're the hope and perhaps the tool for them that will be used to save them. If you're interested about that you might want to play dark knight quests until level 50 quest which shed some light on your true feeling of becoming the warrior of light and people attitude towards you.

What is really interesting is what king Thordan said in the last quest of Heavensward questioning your existence and the power you hold. My theory on this is that you're actually the manifestation of what the Ascians trying to summon or worship but in its premature form and that's why you're being totally passive only to rise as a damned god of destruction.