It's good to incentivize teams to move up and make more, the bottom of invite should never make less than the team winning advanced. If I think about only myself or the players who I know and hang/pug with I think dispersing money to top talent to go to rgl LAN would be cool and fun, but being honest if I put myself into the shoes of a mid-IM player whos trying to get better or wondering if dedicating more time to tf2 is worth it, id probably not really care for the difference between the regular online playoffs and the rgl LAN. either way, I'm probably going to catch the same online stream and watch the same fragmovie that comes from it.
This only really matters in my eyes because Invite prize pools are pretty much directly funded by the IM and main players who don't make playoffs. They also don't really get a say in how money is allocated. From what I've heard ( and I may be wrong) they poll the top teams and make a decision, so it's not really surprising that the majority of the money goes to the top teams.
Having an API, servers, paying for mentors and a newbie drive to be organized, paying admins and expecting higher quality and more professional work, and paying for the development of the league all creates a smoother experience.
This is especially true for those in the lower divisions who may not have all the networking and resources that people in advanced+ do.