The first and second key

Someone pointed out to me that Dr. Tony Tan was involved in holding the first key, i.e. to invest the money of the GIC. It will be difficult for him now to hold the second key- as it is a conflict of interest. There is merit in this argument although it may be possible for Dr. Tony Tan to be independent in his approach when he changes his role. But it is a difficult question for the voters to decide if this is possible.