Abiy Ahmed (2019), from Ethiopia, ended the cold war with Eritrea. Then he launched a war against the region of Tigray, with mass rapes and mass civilian killings. He harassed the free press, and turned the country into an autocracy.
Juan Manuel Santos (2016) from Colombia and Ellen Johnson Sirleaf (2011) from Liberia later appeared in Paradise Papers because they had secret offshore companies in Panama and Barbades. Their political activity was more tame after the prize than before. Both ended their presidential tenures with plummeting approval rates, especially because of corruption allegations.
Barack Obama (2009) received the Prize for his generous discourses on foreign policy, just after being elected. Then he lead the USA to more war in Afghanistan, and a new war in Libya. He helped Saudi Arabia invade Yemen (UN states this war killed 300,000 people). He helped the Egyptian army with its coup, that killed thousands of opponents and sent 60,000 in jails (including the elected president who died there).
In my opinion, this prize is, most of the time, a dark and heavily political joke.
Side note: Democracy will not work in Egypt until the Muslim Brotherhood loses popularity and/or Islam in the region becomes more moderate. Until then, you're just going to end up with the same situation as Ethiopia and Tigray with a Brotherhood-dominated government and the Copts.