That's what you get when designers feel obliged to uniformize a user interface, thus, that buttons must look very alike, irrespective of their purpose, and be placed in a group. I bet quite a few websites and softwares have similar problems.
You've seen this in many average products, but I feel I have to insist that it is not due to design in general, but more due to the average designer lacking the talent to solve the two axis equation properly.