The problem comes when some individuals in the guise of probity start a personal vendetta questioning each and everything, this often happens within extended families and colleagues/supervisors at work. Looking into the personal life of a public figure, maligning an individual character are not example of probity. So,by all means understand a person around you but if their action/work is a suspect, then focus on probity.
The same results can be gathered with cordial behaviour but arrogant people prefer probing.
Thoughts exchanged is knowledge gained.
What we can do is try to be nice and polite to the people we meet. Because "First impression is the last impression" as we all know. So, we should always try and make a healthy conversation with whosoever we meet.
Do what inspires you !!