This paper demonstrates the imperativeness of public participation if the people who are entrusted with leadership in a country misgovern amid the watch of constitutionalism. For social justice to occur—for the vast majority of Kenyans to access healthcare, adequate housing, adequate and nutritious food, safe water, social security, education, to ensure their well-being—governance is the sine qua non. It is not governance per se, but governance that is participatory: a type of governance that values the views of the governed. Kenya, with a population of approximately 50 million, has over 45 per cent of its people living below the poverty line or on less than two dollars a day while some citizens have by far more than they need. The East African country is regarded by the World Bank, UNDP and other authorities as one of the most unequal countries in sub-Saharan Africa. Because of this huge divide between the haves and the have-notes, the country is far from attaining social justice. For social justice to be achieved, social problems have to be mitigated. This is only achieved if people have access to the basic needs such as clean water, food, healthcare, and clothing. But then again, social justice cannot be achieved without public participation, accountability, transparency, effectiveness and efficiency, equity and inclusiveness, responsiveness, and the rule of law. Through literature review, it is clear that participatory governance boosts not only equality and equity, but also efficiency and effectiveness in service delivery, alleviation of corruption, ineptitude, laxity and inertia, and empowerment of the people in their quest to expand their choices.