It is said that in the 'progressed world' your sins and vices are no one's business, just private matters
Yet if you abuse your family members it is everyone's business, not a private matter.
  Many believe that being cheated is far more painful than being hit or insulted.
How is it that something like verbal or physical abuse should be reported to the police by any passer-by, yet a far bigger abuse (infidelity) is no one's business?
So developed people object if they catch someone hitting his wife, yet don't object if they see a married man going to a broths or having a gf?