>I've always felt the main reason That most companies use Salesforce Is that most companies use Salesforce.

It's like this for most software, but as a salaryman it's better for you if you use the common software. If you have an interview you can now say "I know how to use the thing that most people use" instead of "Actually we had an inhouse system so if you hire me I need to be onboarded for 3 months".

I got hired to my 2nd job in large part because I knew how to use Broadridge Paladyne (back then it was pretty good if you got over the pretty bad UI/UX, by today's standards it's not great).