You are narrowly interpreting 'position of trust', ISPs are not only in a position of trust (we give them
ALL of our data to look at), they are because of their trusted position subject to all kinds of directives historically more associated with post offices and telephone companies. They carry our data. As such we trust them very much.
The full quote of what TBL said was this:
"We need rules," said Berners-Lee. "If businesses are to move here and start here rather than start in Europe or Brazil or Australia — they're going to look around and make sure, 'Oh, does the power stay up?' And they'll look for other things. 'Is the Internet open?' Will they have to effectively bribe their ISPs to start a new service? That's what it looks like from the outside. It's bribery."
In other words, if you need to pay the gate-keeper for equal access to the subscribers then that's bribery because the common-carrier principle holds that no priority should be given to other people's packets over yours ('without discrimination') and VV. Allowing such differentiation could for instance cripple any voice-over-ip offering that was not sanctioned via deep packet inspection.
That's what this is about, not about a narrow definition of bribery, not every word is to be taken literally but in this case it is close enough that I don't think you can pretend that you did not understand the slight metaphorical component and simply acknowledge that a gatekeeper that needs payment where none should be due is tantamount to having to bribe someone.
Uber does not enter into it.