That's because monkey don't evolve into people, we have a common ancestor with them. Millions of years ago a species of ape branched off, one group after millions of years became monkeys, the other eventually became humans after millions of years of adaptations. Micro and Macro evolution is the same thing. Micro is all of those adaptations over a small period of time, in macro all of those adaptations eventually result in a different species after a much much longer period of time.