Higher ministerial pay does not necessarily mean more responsibility should be put on the leaders.

In Singapore, the main objective of paying high salaries to leaders and ministers is to prevent corruption from taking place. The consequences of corruption are detrimental because it deters investment and hinders growth, spurs inequality and erodes macroeconomic and fiscal stability. In addition, corruption reduces the effectiveness of government decision-making, channeling urgently needed resources away from sectors such as healthcare and education to corruption-prone sectors or personal enrichment. Hence, high pay cheques are issued to these politicians to avoid economic and social detriments and does not necessarily mean higher responsibility on the leaders.

Probity - integrity and uprightness. honesty

Politicians who govern the country must uphold the values of probity.