Sir Sajid Javid took a vast pay cut when he became an MP (Picture: Justin Tallis/AFP via Getty Images) Former Tory minister Sir Sajid Javid has said the ‘worst financial decision’ of his career was becoming an MP and taking home a £98,599 salary. The ex-banker and former chancellor said despite it being one of his ‘best life decisions’, being elected to parliament left him earning, in real terms, less than he did in the financial sector at 21. M…