And surely, there will never be anyone who’ll just cynically use their professional credential to make a lot of money this way. Of course, there are plenty of people who do shady things like this today, but clearly obtaining professional certification will make angels out of humans.
If. Many people will take a risk, as the risk will pay off in most cases that aren't totally egregious. Most shady scenarios are not "people will certainly die if I sign off on this", they're rather "eh, this is somewhat against the rules, but it's not that important, it just increases the risk from one in 1000 years to 1 in 300 years". People who will accept the risk to their personal careers will be in high demand as "people who make projects happen", and they'll be highly renumerated for their increased risk profile.
In any case, if PE was required to work in software, I wouldn't have had a job in the first place, so I'll always oppose these kind of efforts to shut out the outsiders and underprivileged people.
