At times the judgments or evaluations of religious leaders placed someone in that group. At times the person's behavior placed him or her in that group. Sinners were unsuitable for social association in Israel. Properly religious people shunned them. Such undesirables were denied involvement in synagogue activities, and synagogues occupied a central role in Jewish communities.
Every society has individuals who have no desire to be religious.
That likely was true of some of the sinners. Some likely enjoyed and valued the pleasures produced by evil conduct. Some likely were enslaved to a sense of guilt. While many sinners likely felt rejected by religious society, it is likely many had little desire to be a part of Israel's religious establishments. He gave them hope.