In other words, what is needed is a very broad concept of social protection and social justice, with decent work and labour rights, public services, health insurance, pensions, family allowances, and yes, specific assistance to poor people. This is the only civilised way to achieve what all people want: social justice that services people, safety, and security instead of the economy.
It should be clear that these policies can never be put into place without fair tax systems and without economic policies that really give opportunities to all. A lot has already been done in that respect with interesting work carried out at a global level on social and solidarity economy and on commons.
Social development is indeed the way forward in order to abandon the perverse and failed neoliberal ideology, to re-install a belief in solidarity and universalism with respect for diversity. There will never be one single social policy for the whole world. The task of a global summit should be to define the fundamental universal principles and then leave it to different regions, countries, and municipalities to make it concrete, taking into account the needs and wishes of local populations.
Today we live in poverty factories that urgently have to close. Poverty can never be justified in our rich world.
One final point. If social development can take care of the basic needs of people and of the safety and security of the whole of society, with economic and social rights, it directly contributes to peace and social justice.