Well...I went from 67% (Food+heroes banner+50%+account Karma bonus) to 50%...which, while significant, is understandable - those karma containers are intended to be a static reward, originally intended (at least, as far as I can tell) simply as a means to reward you with karma for a task, that you could then send to alts. With the addition of the wallet, I'm frankly surprised they're still in game, but *shrug*
Of course, I'm not too concerned, as I broke the 1.1M karma barrier (which is slightly more than needed (average) to complete a legendary) on Monday