This thesis follows a multi method design study to explore ideological psychological contract and its consequences. First, an explorative qualitative study investigated this construct in a sample of employees working for the children’s oncology department of a public hospital. It revealed the importance of ideological obligations for medical employees and how their fulfilment helps them to overcome minor causes of breach in the purse of a mission that transcends them. It also highlights the importance of the meaning of work in explaining the strong relationship built through this type of contract. Further, a quantitative study, conducted on a sample of 300 medical staff based in the UK, and replicated on a sample of around 150 bankers, explores the outcomes of the ideologically infused psychological contract fulfilment and how the meaning of work can explain these consequences. Results contrasting both sectors show that while the fulfilment of an ideologically infused psychological contract seems to play a crucial role in the healthcare sector, by triggering job satisfaction, display of OCB towards peers, the organisation and the patients, employee wellbeing and engagement, it doesn’t seem to influence attitudes and behaviours in the banking industry to the same degree, raising questions to the transferability of this concept across sectors