A good or virtuous person — someone of moral character who behaves rightly.
あの人は本当に善人で、困っている人を見ると助けずにはいられない。
That person is truly virtuous and can't help helping someone in need.
善人が報われる物語は多くの人に好まれる。
Stories in which good people are rewarded are liked by many.
彼女は善人だと評判で、地域活動にも熱心だ。
She has a reputation as a good person and is active in community activities.
A good-natured or gullible person — used sometimes teasingly to mean someone so kind they are easily taken advantage of.
彼は善人すぎて、商売で損をすることがある。
He's too good-natured and sometimes loses out in business.
善人扱いされて都合よく使われないよう気をつけている。
I'm careful not to be treated as a pushover and taken advantage of just because I'm kind.
『善人すぎる』と言われると本人は困ることもある。
Being told one is 'too good' can sometimes trouble the person.