White magic never claims any supernatural occurrences; neither they gift any divine power, blessings, etc. They simply entertain people with fun and enjoyment, without having any destructive intention. By seeing the people's attraction towards the white magic, few magicians try to influence people (blacking out the truth cleverly!) with some supernatural acts and thus they generate Black magic. The black magic gives rise to the superstition, believing in the witchcraft, etc. Black magicians claim to be the creator of the white magic and having for all the creation/destruction capabilities within them.
Each line of the magic has their unique character of side effects on the lifeline of the society. People enjoy white magic as entertainment and education. The power of white magic can be utilized to spread the awareness against the evils of the black magic. White magic is for progress and prosperity. On the other hand, black magic asks people to surrender. They encourage brutality, cruelty, and all other non-humanitarian qualities, thereby pulling back the society from glorious advancement.
White magic is actually for fun or to entertain people. White magic don't have any kind of side effect if used only for entertainment.
On the other hand black magic is for doing bad with someone. It's use to destroy someone's personal life or to impact with bad effect on someone's life. There are many people who use black magic for other people because of jealously. Black magic has many bad effect as it pour bad effect on people life.