Aside from worthless degrees, having a college degree absolutely opens doors that would not otherwise be open. My current job required a degree. My degree has nothing whatsoever to do with my current duties, but I couldn't even interview for the position without it.
This is not unique to my current job either. The last 2 jobs I've had were exactly the same. I've only had 3 jobs since I left education almost 15 years ago now.
I don't know how long you've held your current position but, college degrees aren't the currency they once were. And, the bolded part is the reason why.
People graduate college with worthless degrees that are irrelevant to the jobs they eventually hold. Business is figuring that out.
And, in the current job market, being employable seems to be more valuable than a college degree, otherwise, there wouldn't be 99-weekers with master and doctorates.