I mean they pay roughly 3-4 times as much for the same level of service as the single payer healthcare in my country. So it's a massive market with much larger

I mean they pay roughly 3-4 times as much for the same level of service as the single payer healthcare in my country. So it's a massive market with much larger profit margins, the lack of vertical integration adds not just one, but many layers of profit generation (and total cost increase) compared to a single-payer solution, and you can skew the perverse incentives in favor of your product in ways that are not legal or possible in other countries (e.g. lobbying/bribing doctors to favor your new drug). So yes, it's definitely influential, and it attracts companies, but not only in favorable or sensible ways if you're a consumer/patient.