Research shows that low-income groups are increasingly left behind economically and excluded from the policy-making process of advanced democratic societies. This suggests that governments do not sufficiently address the needs of the poor. In this article, we explore to what extent labour power positively influences redistribution and policies for society overall and for the poor in specific. Following standard political economy arguments, a powerful working class leads to more egalitarian forms of capitalism as they are the main beneficiaries from redistribution. But do social-democratic parties and trade unions also represent the poorest in society, those who participate less in political decision-making and whose jobs are often not covered by collective bargaining agreements? Using comparative time-series data for 23 OECD countries since the 1980s, the findings suggest a positive role of the Left, at least for trade unions on poverty reduction, but less for specific policies benefiting the poor.