The constructive effects of imperialism were:
i. Physical Reformations: Europeans brought about many physical reformations such as making of roads for quick military movement and internal transportation, railway, post, telegraph, canals, aeroplanes etc. These developments helped the local people by creating a kind of interaction among them.
ii. Spread of Education: Instead of importing educated people from their native places, the colonizers began to educate the local people for raising qualified manpower necessary for assisting in administration. They also gave a boost to education for the sake of business purposes and propagation of their religion.
iii. Intellectual Change: An intellectual exchange started among the people belonging to different parts of the world.
The people got acquainted with the innovative western ideas, technology, science, philosophy, literature, law and politics.
The colonized people realized the principles of Liberty, Equality and Fraternity and the philosophies of Nationalism, Socialism, Communism and Democracy.
iv. National Integrity: The imperial nations brought various parts of the colonies under one reign. This centralized governing system integrated the colonies.
Earlier the colonies were divided and governed by various rulers which gave rise to irregularities in governance, law and legal system.
Imperial nations brought the scattered regions and reigns under one banner, thereby establishing one governing system, uniform rules and regulations and one legal system.
This led to a sense of national integrity among the people in the colonies.
v. Rise of New Leadership: A monopolistic form of governance was brought about by putting down the royal regimes and the feuds of the colonies.
The newly educated middle class started to oppose the western imperialism.
As a result, the progressive-minded members of the middle class led many struggles for freedom, thereby giving rise to a new leadership.