Time is only money when you are at work (as intended by Franklin), video games, as I've said before are intended only to pass time. If time were money, no one would be playing. The three separated dots indicate omission, not deletion. I did not "skip" anything, it was merely shortened to be used as a reference to the original post; English.
Let's say "time is money" is right, and its not free. What will you do with the money? Buy things that other people made with their time? They are charging you 10x or more what their time was worth, you just got a terrible return on your time investment. As someone else pointed out, in regards to low level recipes, you can make lots of money by "wasting" your time. The pinnacle, as I also brought up earlier, is if you are in a "merc" group. Running < 10 minute EX primals for cash will trump anything you can do solo.
The only situation I could see "time is money" being even remotely applicable is if you were sitting in town saying "there is nothing to do" when you could be gathering, crafting, dungeoning (new verb?) or anything that would increase the gil in your coffers. Again, to qualify it all, we pay SE to play, we play to waste time, time in a video game is not money.
Edit; Addition: Hey people who feel the need to try to argue with me and say that I'm argumentative, you have added nothing to this thread.... Include some information relevant to the OP if you wanna go back and forth, as I've been doing. Applying broad generalizations to quotations dilutes the idea behind important sayings to the point they are no longer relevant. It has nothing to do with being pedantic. --- By that definition you "skipped" the second part of it, the part which counters your admired first part. This is all off track, contribute something useful. Crafting your own gear, and gathering your own stuff to make it is different from farming gil to spend on that same gear in what way? You're dismissive but offer no concrete alternatives.
The important part: Another money maker is the new treasure maps - If you gather your own. A group of 8 people, doing the maps which you can take 8 people to will each make 1500/5000 gil per treasure map. If you all have two maps, you will make nice chunks of change.