Explain how Aadhar can reduce corruption? I still encounter government officials who take bribes in order to do the basic duty they were supposed to do. Neither

Explain how Aadhar can reduce corruption? I still encounter government officials who take bribes in order to do the basic duty they were supposed to do. Neither Aadhar nor even demonetization has affected this in my experience. I can understand how Aadhar reduces the corruption of common people (like in the case of tax evasion). And the government loves to reduce corruption of the common man. However it is very unwilling to lower its own corruption.