Except that the reason we find him repulsive is not because of him telling us "where dangerous things will lead them" but because of him as a human being, his behaviours and personal hygiene.

I have great respect for his thoughts and ideas, and his steadfastness in following his own rules/guidelines, but I don't like him. If he were to look more the part I would have an easier time telling people about his ideas and thoughts without having to worry about people asking "Is that the guy that eats stuff he pulls from his feet?". His outward appearance influences the way people see him, the way people treat him and how much they value his ideas and how seriously they take them.

That is unfortunately true for anyone in almost any situation.