With his most experienced side ever, head coach Neil Powell notched up his fifth tournament win of 2017 and continued South Africa's dominance on the global stage.
South Africa blitzed New Zealand in the first half of the final‚ scoring three tries through Phillip Snyman‚ Seabelo Senatla and Kwagga Smith with Branco du Preez landing two conversions to run into a 19-0 lead at the break.
The Kiwis had remained unbeaten in pool play and through the quarter and semi- finals at the season-opening Dubai Sevens, but never really recovered from a storming South African start in the final.
Senatla scored another try to put South Africa 12-0 up in the tie, following the first minute opener from Cecil Afrika.
Defeat to New Zealand in the semi-final had spelled trouble for the England team but the resilience shone through when it mattered most, defeating Olympic champions Fiji in the bronze-medal play-off.
New Zealand typically fought back after Rosko Specman was yellow carded‚ with tries through Andrew Knewstubb and captain Scott Curry to make it a nervy end to the match.
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Corker has pushed to add automatic tax increases in future years if the package doesn't raise as much revenue as projected. Senators were still grappling with several issues, including a provision to add a deduction for local property taxes.
"We let NZ back into the game with a silly yellow card and one or two mistakes towards the end nearly cost us‚" SA captain Snyman said.
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"It was a long pre-season and a lot of guys went on to play some 15s so it's a new team with some unfamiliar faces".
The US went on to beat Russian Federation 21-12 in the semi-finals, but were comprehensively outplayed 34-0 by Olympic gold medallists Australia in the final.
On day one, on Friday, the BlitzBoks shook off the rust from the off-season by getting the better of Uganda, Kenya and Canada, none of whom ever came close to really troubling the defending champions, and now are the hot favourites to again go all the way and take the title.