It's gotta be tough to do anything too nefarious when your short-term memory is limited to a few thousand tokens. You get the memento guy, not an arch-villain.
Humans have a shortish and leaky context window too.
As a mental exercise, try to quantify the amount of context that was necessary for Bernie Madoff to pull off his scam. Every meeting with investors, regulators. All the non-language cues like facial expressions and tone of voice. Every document and email. I'll bet it took a huge amount of mental effort to be Bernie Madoff, and he had to keep it going for years.
All that for a few paltry billion dollars, and it still came crashing down eventually. Converting all of humanity to paperclips is going to require masterful planning and execution.
128k is table stakes now, regardless. Google's models support 1 million tokens and 10 million for approved clients. That is 13x War and Peace, or 1x the entire source code for 3D modeling application Blender.
LLMs just aren't smart enough to take over the world. They suck at backtracking, they're pretty bad at world models, they struggle to learn new information, etc. o1, QwQ, and CoT models marginally improve this but if you play with them they still kinda suck