There could be any cause for the crowd to form in the first place, that crowd dynamic would be similar whatever the motivation of the crowd is. For instance if you're in the core zone that would get crushed if/when the crowd's movement was stopped, blaming avid capitalism doesn't help you in any way, you would have been safe if under the same incentives the organisators of the event had proper crowd management in first place.
Fatalities at the Hajj weren't reduced by making people less religious, they improved their logistics instead [edited]