A tough working climate and the lack of extrinsic motivation at workplaces within health care raise the question of what instead drives employees within this industry. A possible answer to this is Public Service Motivation (PSM) - a type of motivation that is based on the desire to do good for society and its individuals. In order to investigate this further we have performed a qualitative study consisting of ten interviews with people working with institutional care, where the purpose has been to identify the sources of motivation and determine the impact of PSM. The results show that the compassion dimension of PSM appears to be one of the most salient motivational factors. While the rest of the PSM dimensions fail to explain the level of motivation to the same extent as compassion, other factors are recognized, such as relatedness and aspects of the nature of the work itself.