It doesn't adjust the remuneration of it's members (nor do lawyers in Canada), it really is "market" based, as for doctors the government has a bigger say since

It doesn't adjust the remuneration of it's members (nor do lawyers in Canada), it really is "market" based, as for doctors the government has a bigger say since our healthcare is universal. The PEO will take action against non-members using the title engineer, or take action against engineers not acting lawfully.