How do you estimate the probability that AGI's won't take over the world (people who constructed them may use them for that purpose, but it is a different story), and would be used as simple tools and advisors in the same way boring, old fashioned and safe way 100% of our current technology is used?

1%? I believe that it is nearly impossible to use a foomed AI in a safe manner without explicitly trying to do so. That's kind of why I am worried about the threat of any uFAI developed before it is proven that we can develop a Friendly one and without using whatever the proof entails.

Anyway,

...would be used as simple tools and advisors in the same way boring, old fashioned and safe way 100% of our current technology is used?

I wasn't aware that we use a 100% of our current technology in a safe way.