Fines only really hit the lower ranked players in their pockets- players like Djok should be hit where it really hurts them- dock ranking points , or ultimately, bar them from tournaments.
It's not a good look for the racqet sponsors either- I know Yonex fine players who smash racquets (on top of the tournament fine).
Real karma would be that Djok's tantrum has caused a long term injury to his wrist. That would be a result.