Answer:
Development projects may vary in size and orientation, but most of them share the common goal of helping people and benefiting society.
There are the large development projects financed by governments and institutions including the World Bank that focus on infrastructure and improvements in the education, health and justice systems.
International humanitarian organizations and national NGOs that support development activities ranging from the community organization, welfare support, health, education, small-financial loans and protection of the environment.
Thus we need development projects for a variety of reasons.