Good person is not only good

we always think that those who with good personality or character are good person.
these people are so many.
better definition is :
those who has the ability and the opportunity to do bad things don't choose to do it,
is really good person.

maybe most of us, we don't have so large power or chance to do evil,
so we look like a good person.
if we have ability and power to do anything,
do we really choose to do the good thing?

i am afraid that i am not so good always to choose good thing to do,
if i have great ability and power, what is my new rule to do things?
i am not think about it.
because now i have not so many choices or power to decide what to do,
in these limitation, i look like a good person,
in fact, what i am is according to when i have any choice without limitation.