According to Osho, organization is inevitable the moment truth is spoken; agreement and disagreement crystallize into groups. Knowing decay will follow, wise masters still found organizations to compassionately reach the 'in-between' who can be helped, to shape the form themselves rather than leave it to others who would distort it more, thus maximizing benefit and minimizing harm despite eventual rot.
If a teacher speaks, a group will form anyway, so it’s wiser for the teacher to shape it gently to help people and prevent bigger problems later.