Worth was appointed an Officer of the Order of the British Empire (military division) in the 1994 New Year Honours for his work in the Naval Volunteer Reserves.

[2] He obtained a PhD from Royal Melbourne Institute of Technology (RMIT) with a thesis entitled The Closer Economic Relationship Between Australia and New Zealand: choices other than quiescence or withdrawal in the face of conflict?, which he completed in 2004.

[2][4] He was also a director of Prada America's Cup (NZ) Limited, but would later quit after suggestions it was disloyal for an MP to be linked to a syndicate challenging the New Zealand team.

[5] Worth was appointed an Officer of the Order of the British Empire (military division) in the 1994 New Year Honours for his work in the Naval Volunteer Reserves.

[8][9] Worth entered Parliament when he successfully stood as the National Party's candidate for the Auckland electorate of Epsom in the 1999 election, winning with a majority of 1,908.

[14] When John Key became National Party leader in November 2006, Worth was reassigned to the economic development portfolio.

[20] In 2002 he faced questions from his party for sightseeing in Cairo instead of attending a Maori Battalion service during an official trip to Egypt.

He was a strong opponent of the bill, which allowed legal recognition of same-sex couples though a second class of relationships besides marriage.

The Deputy Prime Minister of the time, Michael Cullen, wrote to Worth about his bill saying it was too broad and might have unwarranted constitutional and fiscal consequences, that the Government would not support it.

In March 2009 he was reprimanded by his leader John Key for failing to mention that he was connected to a company that stood to gain from official visit to India.

[36] The same day, the New Zealand Police issued a statement saying an allegation had been made against a sitting MP and that they were beginning a preliminary investigation.

According to Choudary, Worth first contacted her on 26 November 2008, and altogether, forty texts and sixty telephone calls ensued, continuing until 23 February 2009.

She also alleged that inappropriate and vulgar telephone calls included asking her to buy transparent garments, and that his conduct was unacceptable and unwanted.

[44] Prime Minister Key reiterated that there was no future for Worth within his Cabinet, and warned that suspension or expulsion from the National caucus was still a prospect.

[47] After Worth's parliamentary resignation, Cam Calder took his place as the next eligible person on the current New Zealand National Party list.

[52] In October 2010, the Ministry of Foreign Affairs and Trade announced that Worth had been reappointed honorary consul to Monaco, a role he had held before entering Parliament.

[53][54] As of April 2020, Worth still held the role[55] which has seen him attend the wedding of Prince Albert II to Charlene Wittstock.