Judging by your picture I don't think it is too different to mine. I was playing with S7's at various stores for about a month before I bought one and did notice on a fair few that the front camera was slightly out of center.
Yeah I saw a few aligned ones and a few misaligned ones as well.
I guess this must be within their tolerance levels as you mentioned.
Could you share a picture of your device to have a better look at it?