>>3009198More screentime + positive focus = he seems more important
More screentime + more action = he seems more capable, thus stronger
More action + more knowledge + more involvement behind the scenes and as a key character to make certain plot events happen = he seems more capable, and stronger
More freedom to act = he seems stronger, less limited
Kaworu never was a very well written character, he was better written as a plot device in NGE and a thematic vehicle one had to get rid off.