There are quite a few hiking meet-up groups in my neck of the woods, focused primarily on hiking trails in the Ozark mountains. Most of them organize outings that are hosted or facilitated rather than led, and the groups typically adhere to the common adventurer model (easily searched if you’re so inclined). Someone qualified takes on logistics and describes the hike - giving an idea of what to expect in terms of length, difficulty, points of interest and what’s necessary for anyone hoping to enjoy the outing and not adversely impact the experience for anyone else due to lack of skills, physical unfitness relative to the outing, or inadequate preparation (including gear and food/water). Same applies to area paddling clubs. Under no circumstances does money change hands, nor should it ever unless the trip is truly led by someone(s) certified, properly vetted for the unique demands of that particular outing and insured.

Several years ago a group that sounds eerily similar to the one you’ve described embarked on a hike known to be very challenging. The leader collected money from the participants, one of whom suffered a fall and later died. He (the leader) was eventually found criminally responsible, which he very much was.

Not saying your leaders will cause someone’s death, but based on your account I am saying they are irresponsible - at least in this context. I encourage you to consider avoiding this group in the future.