I'm aware of at least two recorded interviews where Bill Gates stated his goal for vaccines was population control. In none of those interviews did the interviewer pause to question the seemingly contradictory statement.
At what point in time did he morph from software geek to Doctor Evil? Was he always focused on this goal and simply busy working on operating systems, or was this a new hobby during semi-retirement from the business?
Windows 10 ought to tell you ALL YOU NEED TO KNOW about trusting Gates with any sort of medically related topic!