SGI-USA promotes a "Prosperity Gospel" just like the Pentecostals'.

The idea is that, the more you give to the organization, the more wealth will magically appear within your life! Every donation is supposed to "come back to you" in the form of extra money you never expected!

It doesn't. Pentecostals, despite believing in this crap for over 50 years, have the poorest members. There aren't enough SGI-USA members to study, but I think a study over time would show that, despite (or because of) all their chanting and activities, they do not progress as quickly as their non-chanting, non-SGI peers.