Except the fewer people who get (or can afford) the vaccine, the weaker herd immunity becomes, and the more likely a future outbreak might lead to another shutdown of the economy, to say nothing of the profits from a vaccine you might only need to take once per year likely not offsetting the losses from sick workers who can't be vaccinated throughout that year.

The ROI for that scheme seems terrible, but maybe I just don't understand basic economics well enough. It seems obvious to me that they could make more money charging less for the vaccine and more to companies and government for implementation and data infrastructure.