Money isn't funny. It never was. It became downright grim when there had been a lot less of it during the two recessions in the 21st century. And figuring out how to accumulate and protect it during the recovery is a matter of serious focus.
Therefore, ghostwriters are advising our clients, especially those inexperienced in picking up on shifts in the culture, to avoid humor and its variations such as wit and irony. There's no market for it, with the exception of professional comics such as Tina Fey and David Letterman. Funny has become the enemy of credibility.
So, for those thought leaders who have a perception of incongruence, which is at the heart of laughter, programmed into their DNA, it's wise to think "poison" when tempted to reveal that one is, well, thinking funny. Thoughts, as Buddhists are teaching more of us, shape action. And the action of the thought leader is to make money while it can be made.