Jack, being a positive role model is not the same as being a community leader.

I can't speak about Black British communities, but my sense of African American communities is that individuals aren't expected to "take orders" from persons who they consider to be leaders of their communities. Note the word "they" (to distinguish those persons from individuals that persons in the mainstream society claim are our leaders). Also note the plurals-"communities" and "leaders".

Since I know too little about that subject, I can't address your comment about the role of Muslim clerics in Great Britain (or anywhere else, for that matter) except to say that your comment seems to me to be far too general and quite inflammatory.

I also know too little about White Britons and thus will defer to your   
sense of your own community.