I think more simply ask how many people make a substantial, durable change in health status in the general population. My sense is quite few, it’s really hard t

I think more simply ask how many people make a substantial, durable change in health status in the general population. My sense is quite few, it’s really hard to change your lifestyle or get more exercise. I doubt a small workplace incentive is going to tip the balance for all but a few people, and those were likely already close to making a change. It’s also labor intensive to measure workplace wellness in a verifiable fashion. You basically need to collect vital signs on your employees, otherwise you’re open to being gamed in the way described in the OP.