Ok...let me level with you here SE...

[Mahoro]

1-3 mil is 1-3 mil. If I go to dynamis, that is how much I am earning. Making it an LS event doesn't change that.

Fair terms.... You pay everyone 1-3 mil per ADL run.

If your theory about everybody needing it and helping out etc is correct, you should get your ~billion gil back in no time by helping out your LS mates right? It sounds good in your head, but would you bet your gil on it? If your theory is sound, all that gil will come back right?

Nope, because your opportunity cost theory doesn't apply to 100% of the people attending that LS event. Some will be relicholders who don't need to farm the 1-3 mill anymore. Some will be people who don't want a Relic/Mythic and so have no need to step into Dynamis to farm gil. Some will be people who want the Arch Boss drops in Xarca or other zones. Some people only log into the game for 3-4 hours a day, and on those nights they DO have LS events they don't do anything else so they don't mind using their Dynamis time because it would just go wasted anyway.

For all of the above people, the opportunity cost you cite is replaced by other drops or DKP, just as it is with ANY event someone attends in-game (i.e., just about everything you do in-game could be "replaced" by something in which you farm gil, including talking to people). As for the people who do farm 1-3 mill every day who skip an LS event, in the context of a large LS they likely won't find any help later on when their Relic is stuck at 95 for various reasons depending on shell policies or member temperament. in any event, a large LS won't spam Dyna. It would likely be an event mixed in under normal rotation with VW, WoE, Legion, Einherjar, etc., perhaps done 2-4 times a month or so.