The relationship of apologies to power is an excellent point. Reading the article, I kept thinking of the times my parents had forced me to apologise for something that even they agreed wasn't my fault, just so that it would smooth things over with the other child (typically the progeny of friends of theirs -- within the family I had the power to appeal and argue my side of the story). Did this affect me as an adult? I can think of plenty of times where I've copped to taking the blame for something I was blameless for just to get a fight to stop, so I'd have to say "yes".
Then there's the other adults I've met who seem to think saying "sorry" is a magic word that leaves them free to make the exact same transgression next time they feel like it, and who are bewildered when people get fed up with their behaviour -- they apologised! Doesn't that mean they're supposed to be forgiven, enjoy a clean slate?
Finally, there are the adults (and I include myself here as well) who cannot accept apologies, and assume they are always insincere. We were forced to pretend to be gracious while someone else pretended to be apologetic, or vice versa, too many times as children. Despite having difficulty believing, I find myself wishing I could believe -- that I could simply accept what the person was saying and move on from there. Instead, I watch the person's behaviour carefully and decide for myself if they've really mended their ways or not -- which must be uncomfortable for them if they catch me at it.
Not a very happy state to find forgiveness in.