For Ed, that personal attention and recognition is probably enough. If people where he works are willing to recognise his brilliance and hard work, it just might put Ed over of the moon.

(Riddler makes no such promises. Riddler hungers for more of everything that Ed ever wanted.)

Only one person ever gave Ed a chance before and every idiot with a single working sense can tell how devoted Ed is to Oswald for giving him that chance. For trusting his brilliance. So Ed just nods, chewing on his lower lip for a moment, eyes wide behind his glasses. He will. He will do his utmost.