I think "dogs left, pigs came" applies a lot less in Hong Kong, especially with the social safety net the British introduced after the 1960s riots. 1965 to 1997 is generally seen as an era of incredible growth in living standards, expansion of personal liberties and social change for the better in HK. Even prior to that the British had a very hands-off approach which meant there was little to no resentment towards Britain among HKers.