I didn't get a CS degree - I did Elec Eng instead, which has some overlap, I suppose - but I haven't found it too much of a problem. I occasionally become aware of gaps in my knowledge, but I find that a bit of reading can usually fix that. I think I'm more motivated and self-directed now than I was back when I was a student, so I'm not sure I really missed too much. Education is wasted on the young!

In any case, once people are more than a few years out of university, they've forgotten enough that it doesn't seem to make a huge difference. Experience, receptiveness, and willingness to continue learning become bigger factors.