I didn't look to see if anyone else said it but, RMT is a good portion of FFXIV's money when they banwave the bots, because the people who owned those bots will just buy new service accounts and then start the whole process over. I understand how morally horrendous that sounds, but that's just money and how it ends up. Whether purposefully wanting more money or unintentionally getting more from bots is another discussion all-together, but botting will continue and will be in droves until... Anything can be done. It's just something we have to deal with until someone finds a way to break it up.
