“Secondly, although it only affects 5% of our workforce, it has a disproportionate impact on the wellbeing of everybody, because [the workers who see a pay rise] are the people that feed them breakfast in the canteen, keep their workplaces clean, and keep them safe.”
https://www.bbc.co.uk/news/business-59259334?at_medium=RSS&at_campaign=KARANGA,