What evidence is there that HPC-ification increases levels of trust?

Baroness Onora O'Neill challenges the current approaches to accountability and explores the public's perception of scientists in a long you-tube posted in the Series: "Science Futures" [4/2005] The heading here is linked to it. She asks 'which forms of accountability support trust' and notes that some systems heighten mistrust, which is sad, she said. She contrasted the provision of epistemic support for trust, with systems that just go in for control. Some systems may damage, rather than improve both the actual practise and the trust people place in it. Some regulatory regimes can incentivise defensive practise, and this can sometimes become aggressive practise: this is wrong. Also, if regulators subject professionals to Mickey Mouse procedures or tell them that they are not trusted they can damage the morale of people who are working extremely hard trying to do very difficult things.

A good question seems to be 'what is the evidence that HPC-ification supports or increases levels of trust'... How you would measure that, in which communities, and on what occasions, is still to be resolved. Trust, after all, is not an objective quantifiable object that can be picked up and put down at will, and is linked to love, no matter how mildly.