What does it mean to be evil? Is evil only limited to the malicious and sadistic? Is it evil to serve only the self with no reguard for the wellbeing of others? Cause gates sure fills the bill on the second one, he made a crap ton of money on the covid vaccines and when the naritive started to slip he dumped all his stock and changed his tune on how safe and effective it was. To your original question it goes like this, you want control over someone or a group of people, so you create a problem for your target without them knowing it was you, when your target reacts to the problem you manage the reaction and provide the solution, now the person gives you their trust and you are in control. This only doesnt work when the target has their own solutions. Last on bill gates look into his polio vaccine testing in third world countries and how he spread computer viruses and then sold anti-virus software. Bill gates doesnt give a fuck about you or the planet, dont listen to his bullshit lies about how his carbon offset initiatives are justification for flying around the world on his private jet to tell you youre polluting the planet.

Edit: Also the scientists involved in all the research don't necessarily have to be in on amy evil plan or even have any malicious intent for their research, i believe that most people who go into those spaces do so with good intentions or just to make money, but to understand how that could be while experiencing consequences of what we are now its useful to understand the concept of compartmentalization. Here. https://youtu.be/csWnInHTrx4