You can't apply real-world opportunity cost to FFXI opportunity cost. There are no conflicting life goals and philosophies. It's a video game. You have fun, you make friends, and you obtain loot. That loot does not become more or less attractive based on how you feel about monetary possessions or moral/ethical dilemmas. It is simply loot. The population is already distilled to such a point where the minute differences in perceived value of items become negligible as we are all players of the same video game and all generally agree on the worth of X, Y, and Z pieces of loot.

500k/hr is an approximate average for how much a farming session in Dynamis is worth for a solo player. My time is worth even more than that. Other people's time is worth less. Very few people capable of killing ADL in the first place are in a position where their time is worth less than ADL is worth.

I'm sure people will still do this trial. I also know that no one who knows the value of their time will enjoy it one bit. You'll be lucky to crank out 3-4 99s before people get sick of it. Have fun finishing the rest without properly compensating people.