Raffles left Singapore for Bencoolen, where he was to be appointed the Lieutanent-Governer. It was an order from the headquarters, and although he tried to decline, it was rejected. He spent about a few years there before he had to go back to England because of a severe disease.

valid reason to me.

Provide some examples as to how? He did not betray Singapore. He had a valid reason to left. If not he wouldn't have come to Singapore in the first place.

How does that relate to anything? He still won in the end.

But, without R's ideas, would F still be able to build? Without any ideas?

It worked because Singapore is now a multi-racial society. Also, racism is a very serious offense here.

If he didn't care, he wouldn't have come to Singapore anyway. He wouldn't have left Farquhar in charge. If he didn't care, he wouldn't have come back.

But that simply means that he had more supporters and valid reasons to win the argument. You cannot just win an argument without reasons..

How was Raffles taking advantage of him? I'm sure Raffles had a valid reason to leave.

He had no choice. He had to go to Bencoolen. It wasn't his choice to go there.

Which proves that Raffles had more supporters and had better reasons which eventually made him win.