Champion recruiting levels

The champion level recruiting skill system feels a bit pointless.  By the time I research the "recruit L4 champions" skill, most of my champions are leveled to the 8-10 range.  Why would I *want* a L4 champion at that point?  It needs to be either removed or scaled up.  (Instead of skills to recruit champions at levels 3, 4 and 5, have skills to raise the champion recruiting level cap to, say, 5, 10, and 15.)