If Oracle, IBM or Microsoft after 50 years, and employing thousands of Software Engineers ...include the standard disclaimers on their Software, I dont think those in title only should make much fuss of the Software Engineer badge...

Only because so far they haven't been called into court as much as they should.

Thankfully stuff like Crowdstrike and Cloudflare are making governments pay attention to industry losses caused by malpractice.

Then maybe you shouldn't be allowed to rely on such software not causing utter carnage when you're implementing some infrastructure thing via software?

Also note that such warranty disclaiming "fitness for any purpose" is not possible if you sell for money software that you say is for such an infrastructure situation, at least in e.g. Germany. That's not from the license but from the sale though.