I'm a former AET and I can tell you that I know a few AETs who went thru OCS and became pilots.
I can also tell you that I got out of the CG as an AET to attend law school. I was recently selected for a direct commission back into the CG at an officer. Without a doubt my time on the C-130 as an AET gave me a variety of experiences and awards that helped with the selection process for the direct commission lawyer program.
Any aviation rate is a great opportunity to further yourself, not only within the CG, but with almost any other endeavor.