In fact, everyone now gets more than they had in the past. It's just that people tend to feel others get even more, and this feeling of "relative deprivation" is the source of much ill will.
其實平心而論，每個人都比以前多得到了一點，可是總覺得別人得到的更多，這種「相對剝奪感」才是怨懟的根由。