There are plenty of "thought leaders" in the financial advisory industry that can help us learn and become better advisors. However, I would submit that most of the truly life changing ideas that you'll come across will be from taking unrelated concepts and applying them to your business and/or life.
I am going to start sharing some of non-industry resources I have found most thought provoking or educational.
One of the people I find most useful in honing my thinking is Jason Fried. He is the co-founder and CEO of Basecamp (a project management tool) and a prolific blogger and author. Instead of trying to summarizing everything Jason has written about, I will just link to a few things he's written or that have been written about him and recommend you start reading his stuff....you'll know pretty quickly if it resonates or not.
https://m.signalvnoise.com/ive-never-had-a-goal-c89219aedddf#.i4egnfm4b
http://tech.co/remote-jason-fried-david-heinemeier-hansson-2013-10
https://m.signalvnoise.com/the-buck-stops-here-refunds-in-2017-come-out-of-my-pocket-55f763114ab8#.ht67ac7sg