I disagree, since they bring very different things to the table. Beating a super powerful fist fighter and solving a grand scheme aren't inherently hand in hand. Which is why I loved the later pre crisis and the Casey run, for the extreme versatility.
I think the best chance Toyman had of entering the rogue pool was by way of Morrison using him for the revenge squad. The Toyboy from Pak wasn't too good, even if the tone was right imo.