==  Three points == 

 1. Deletion would be silly.  The subject plays and has played an important role in the preservation of iconic 20th century buildings, as well as his evidently extensive pro bono work in the UK. 

 2.  It would be good to have a more detailed discussion of his role as a property developer.  I assume this is what pays for the other activities.  What would a business history look like?  The parents were sufficiently well-healed to send him to Eton, but were they rich rich?   

 3.  WP favors up-to-date photographs of article subjects.  Which this is not.