jamesdean was talking specifically about pass rushers and you named one stud pass rusher who probably should've gone top 5 but inexplicably fell to 10 as that draft went off the rails (remember that was the year that someone got skipped for not getting their pick in and there was lots of chaos).
I think jamesdean is right that finding a stud primary pass rusher outside the top-10 is very difficult. It can be done, but your odds of a pick outside the top 10 not making that level of impact are pretty high. Boulware and Suggs are the only DE/OLB that the Ravens have drafted in the first, both very highly. They've done a decent job finding secondary or complementary pass rushers, but the one guy that everyone is afraid of is usually a very high pick.
They haven't had a lot of those picks to make, of course. Especially not since Harbaugh got here, with Stanley being the only time they drafted above the middle of the round.
And when you're lucky enough to draft someone like the Bosa brothers or Von Miller, you hang on to them like grim death because they're so rare outside of the top 10.