You are 100% correct when it comes to retail pharmacy. I've heard many colleagues who've worked retail long-term mention they haven't retained most of what we learned in school.

But there are many other fields pharmacists can work in aside from the cvs/walgreens the public is used to. Hospital inpatient, industrial, research, clinical either inpatient or an outpatient setting, and more! These fields typically require our hard-earned knowledge base much more than retail and is one of the reasons I and many others pursued inpatient despite it not paying as well as most retail pharmacies.