because good people make wrong choices too...
cause and effect...
and also because of bad people, when they act most likely the good ones suffer from their acts effects
again, cause and effect.
still under cause and effect...daghan pa kaau...
pwede pud eternal salvation,indulgence...or something of divine, higher purpose and reason...daghan kaau
but bad things do not happen to good people alone
as the saying towards evil people goes "they have already been paid in full"