Complex sentence: In spite of his credentials as an important proponent of South Africa's peaceful transition to democracy, he has also been widely criticised for the conduct of his business interests although he has never been indicted for illegal activity in any of these controversies.
Split into simpler sentences: In spite of his credentials as an important proponent of South Africa's peaceful transition to democracy, he has also been widely criticised for the conduct of his business interests. It is important to note that he has never been indicted for illegal activity in any of these controversies.