We know the public persona of Bill Gates has been carefully curated. Instead of the philanthropic geek it appears he's a womanizer. He also appears to be linked with Jeffry Epstein, and behaved strangely in one interview when questioned about it. So yeah, I don't believe what I see in the news and nothing is off limits when it comes to what the truth may be.
I also don't believe the FBI and CIA are as clever and careful as they are corrupt. Have they ever been involved subverting laws and justice? Yes, they have. So again, nothing is out of bounds of possibility.
Based on your "logic", any evidence of guilt presented would always act as evidence of innocence because "why would they be so dumb to be caught out", so let's not waste too much time on that theory.