He didn't make any effort to hide his disdain for them but didn't deny their utility.
He asked the Knights of Discorporea to give him their reports and was insisting for them to go to the archive downstairs, where they first met in 1848, but Fraser Burdon, suspiscious, refused.
After hearing their reports, he insisted again to go to the archive, saying that the Prime Minister was waiting for them there, but they refused again. Seeing that his plan has failed, Radcliffe gave the order to knock out the guests. They were taken by surprise and were finally brought to the archive where they were tied to chairs with iron shackles.
When the Waltzers woke up, Radcliffe admitted that they have been conducting various experiments on Waltzers and that the Queen wanted them extinct.
Unfortunately for him, despite being in a cellar, they managed to step away for Fraser had dug a mine on the adjacent world exactly where the vault was.
Fraser took a few paces, stepped back to the Datum to kill Radcliffe before disappearing again.