'We're nowhere near the No. 1 team in the world' - de Villiers

Beat the No. 1 side by 141 runs. Beat them again by 134. In the first game, put them under a mountain of runs and straitjacket them with exceptional quick bowling. In the next, watch the same batsmen capitulate through low-percentage shots. This tour has all the makings of being to South Africa what the West Indies series was to India in November. And never mind what Dale Steyn feels, South Africa's elder statesmen are not getting ahead of themselves. AB de Villiers and Hashim Amla both laughed heartily when asked if this Indian team was proving to be too easy, but they wouldn't get drawn into making what could be seen as inappropriate statements that might come back to bite them later.

'Wouldn't be drawn in into what would seem like inappropriate statements'. That class and how classy people answers.
The Aussies and the English loudmouths would have gotten into a diatribe bout how easy the Indians are  and the pasting  and whitewashing that awaits them

To be fair, SA have always been humble and avoid banter. Though Steyn did make some pretty sledg-y remarks himself prior to the match. It has more to do with AB being such a cool guy. He never gets himself into banters etc.
You could expect Clarke to do the same, off field - as in not brag about such stuff. It's hard to generalize IMO.