So that might help to prevent an attack from an amazon employee?
No, it would only stop an Amazon employee stealing your instance when it's powered down and not being accessed. (Whilst it is not running).
If it's running it's possible to access.
I would think that Amazon's cloud security is really high. Lot's of intellectual property runs on top of Amazon cloud. Engineering solutions worth hundreds of millions, simulations by banks when they don't have enough computing power, even competitors have used Amazon cloud for their own cloud hosting.
If a wallet was to be stolen via an Amazon employee, they would compensate you for the entire amount or face losing far more money due to bad press. (They aim for their cloud services to pull in $20,000,000,000 per year, or more money than all Cryptocurrencies combined. They have a lot at stake.
I agree, thats why i switched from digitalOcean to Amazon. But digitalOcean would be cheaper and has much more power
I'd say that DigitalOcean is probably about as secure. They are smaller, but they have investors like Andreessen Horowitz. Pretty serious people.