I won a game and everyone blaming me. ur opinion?

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1 week back,there was a chess tournament held in my locality.It was somewhat like a big event.Around 150 participants were there. I went till finals.In finals,my opponent was quite strong or else got strong because i made a mistake and i knew it was a big mistake which would cost me the match. suddenly,after 30 mins (in another 8-9 moves he would win),he requested the authourities that he had some problem and wanted to go the bathroom.The authourities told a timeout of 3 mins is allowed,should come before that.he didnt come(maybe some problem).Authourities told me after 3 mins,its in my hand either to wait or force forfeit. well,i thought for some time and forced forfeit.I won.Everyone are blaming me now. What I did was right?? well,i know it is wrong to some extent.Not being sportive enough.But in a game,YOU have to go by rules and regulations.and that is what i did.Was it wrong?What do you feel?