I'm a retired programmer and the only time I faced a situation where a PhD (or Master's) would have made any difference was when I worked for a company that was involved with defense contractors. In this situation we had a pay scale where the hourly rate at which we were billable to the client was based on our degree, something like $110/hr for a bachelor's, $140/hr for a Master's and $185/hr for a PhD. The fun part was that it didn't matter at all what field the advanced degree was in, so if I'd finished my Anthropology PhD way back when it would have meant I was billable at a much higher rate and correspondingly worth a much higher salary to my employer, despite its complete irrelevance to the actual tasks I faced.

We had a number of absolutely useless employees with PhDs who nevertheless brought in a lot more revenue than I did. It turned out later that some of the PhDs were made up - they had just put it on their resumes and nobody ever checks that shit. FWIW we also had a bunch of retired Air Force colonels on staff and nobody expected them to even show up to work on a regular basis. The corruption in that sector of the economy is just massive.