Whatever realignment I can get from that technology (invisalign), will add a whitening program at some point.
Americans care a lot more about teeth. I generally notice that a lot of Aussies and Europeans have terrible teeth. Americans are obsessed though, slightly different looks standards. In Europe awful teeth are the norm. The teeth of the average European are like an orchestra where everyone is playing different music.
That said, online dating emphasizes facial attractiveness and downrates height, frame, body composition, body language, voice, smell, etc. Perfect teeth are to online dating today as six packs are to beach parties, raves, etc.