Why would that make any difference at all, monkeys came from something which came from something which came from something which came from bacteria. No physical anything about any creature can in any way disprove that we evolved from some monkey. There is no way to disprove it by any current differences. The theory can not be disproven.
The theory of evolution could be disproved if the evidence showed that we either did not evolve from other life forms (for example, instantaneous creation, say, last Thursday), or the evidence showed that we were dropped here fully formed by space aliens or some such. Either of these scenarios would disprove the current theory of evolution.
The problem is, there is no convincing evidence for these, or any of hundreds of alternate scenarios.