Take the biases that we've heard about in image recognition where these ML models misclassify black people. If a person had done that you would accuse them of racist beliefs.
Why is the computer model so different? Because you don't want to believe that computers can reach consciousness? (I don't either at this point but time will tell. We don't really know enough - or I don't - about what consciousness is and how it works.)
Otherwise, chatbots are very good at learning abusive and racist language. It's due to our belief that it's not right and decent that we train them using a bias. And it's only due to beliefs that we rein in the rogue AI which misclassifies black people.
Edit: If you still want to think of belief as an input node whose link has weight, then set the weight to infinite
If the belief is weak (or false), it might lead to confusion and distrust, which will make it impossible to learn anything.
Also, experiencing heightened states of awareness is not necessarily beneficial, people on drugs experience it routinely.