Bill gates and heaven?Islam?

Aslam alaikum. I just want your opinions on this matter. Bill Gates the person who invented/created Microsoft is giving 99% of everything he had earned to charity. Specifically the charity he and his wife have set up regarding vaccinations for sick and dieing people in Africa. Now religiously speaking from an islamic point of view do you think Bill Gates will be allowed to go to heaven seeing as how many people he has saved/will save including muslims. Even though he is not a muslim. Please give proofs of you arguments/opinions thankyou.