Edmund Burke said
"for evil to triumph all that is required is for good men to do nothing".
Alas, he could not foresee how as societies evolve
through technology the future would prove him wrong.
For evil to triumph in the 21st century
all it takes is for enough 'good people'
(everyone wants to be seen as good)
to set themselves tasks that match
their aspirations and for each act to be so slight
that it can only be seen as good in itself, or at worst harmless.
Because of the slightness of the tasks they credit themselves with
the effect becomes an active collective passivity,
where the individual good becomes a collective evil.