First, the word "argument" is used here to describe "debate," or the insistence on a position in spite of opposition. Nothing wrong with that, all debate is centered around an argument(s). The word isn't meant as a slight, or a suggestion that you're looking to fight about it. Just that you're being persistent in your view in the face of opposing views. So yes, you're presenting an argument, albeit a hypothetical rather than realistic one.
Back to the topic at hand...
Here's a similar type of decision (and more likely to happen than this hypothetical 5-way AIPF early in a big tourney) that was put to several pro's last year by PokerNews.
Basically they asked a number of pros if, on the very first hand of the WSOP ME with you at UTG+1, the UTG player shoved blind, what range (if any) would you call with? The answers might surprise you. Most amateurs would probably say AA, maybe KK, but a lot that think like you will say "I'm not getting AIPF on the first hand of the ME with 8 players behind me with *any* hand, even AA. I don't want to risk my tournament life early in such a big tourney." Heck, I might do the same even though I know better -- until I'm in that spot I guess I won't know for sure if I'd have the stones or not, and it would largely have to do with my BRM comfort factor.
Aside from the expected AA/KK, several of these pros said they're willing to gamble their ME on the first hand with much less, e.g. JJ+/AKs, top 15%, AQ+/99+, AJ+, A9+/88+, etc. One big reason is that for these pros, the 10K buy-in, even combined with the prestige of the ME, is not playing into their decision. They're making decisions based on things like EV, their edge, variance tolerance, players they're up against, and other things. Point being, you shouldn't be basing this decision on the cost of the tournament either. If you'd do this in a $5 tourney, you should do it in a $10K tourney.
It's not a direct comparison, but I hope it helps reinforce the point that you shouldn't be distracted by irrelevant details like buy-in or even "tournament life" (which btw is a laughable concept to a lot of poker players). There is a totality of different factors that should lead to your decision, not the least of which is the cold EV math that says this is the correct play to make. Very seldom should that be ignored or overridden.