It affected the way he thought about information that he got from Sammy, how he weighed, filtered and interpreted everything Paradise told him, complete with the irony and bitterness the people who had said it to him had come by the dishonest hard way, had had a lot of time to think about, in prison. They had refined it and worked it over in their minds, so that ever afterward it distorted everything they said through a sharpened, crooked smile. The mocking smile that never altogether went away told what they really thought when they saw men and women and their children, the conduct and possessions other people valued and took care of: they saw that they could turn those values into vulnerabilities. Weaknesses they could use to enrich themselves, and demonstrate that they could destroy anything they didn't want and would, to please themselves.
It was the dialect of real evil, a silent language that they spoke and Sammy didn't. The words were the same in each one but the connotations were different. Not opposite; trickier than that -off-center, skewed and distorted. When they thought a guy who had some power over them was nice enough so that they could be friendly with him which meant take liberties with him; 'you know, like fuck with his mind a little; don't mean the guy any real harm' without really risking anything, it had to mean that he was kind of an asshole, a jerk. Weak, if he wanted to be arms-length friends with them. The kind of guy you'd always have to be putting something over on, kind of laughing at, taking advantage of, to show that you knew he was weak. He'd never been one of the boys, and he'd never be one of them either.
They would always do it to him because they would always see it as a part of the duty to be cool. Merrion would be several miles and days away in Canterbury, when they saw Sammy down in Springfield, sat down and talked to him, just as earnestly and soberly as he talked to them, but later when Sammy talked about his clients and what they'd said to him, Merrion without ever seeing them would know exactly what had been going through their heads, like lethal gas, while they fucked with Sammy's mind real good for the Hell of it, for something to do in Hell, to pass away the time: contempt. And Sammy as he talked earnestly to Merrion would still not know what had happened to him. Reciting it to Merrion after the fact, completely unperturbed Merrion listening to him, hearing what the hard men had been thinking in the discordant music underneath the words that Sammy was repeating Sammy still didn't know, any more than he had known while the words were being uttered, what evil there was in them.
For Merrion it was like being compelled to attend a delayed broadcast of a sadistic procedure, knowing in advance what had already been done to the victim to degrade him, unable to do anything about it. It was as though he could communicate in his mind with evil men he had never seen and would not recognize on sight, but would know them for what they were, by instinct, if he ever saw them, and know beyond a reasonable doubt the nature, not the details, of what they had done. He understood them. You did it even though there was nobody else around to see what you were doing; you still had to do it. It was your moral obligation. So in case it did turn out that there had been someone looking, you wouldn't look like you'd been taking him seriously. And the perfect cruelty of it was that you hoped he hadn't gotten it, and wouldn't ever get it.
Because if Sam ever had allowed himself to catch on to what they were doing to him, meanly making fun of him, making a fool of him, that would triple or quadruple the pain they had inflicted on him just for fun. He still would've had to act as though he still didn't know it was going on, made himself act as though it never really happened.
Because after he got through talking with them and forming his impressions, it was going to be his job to write factual, unbiased reports about them. As he construed it that required never letting his personal feelings influence his judgement of a man, have any bearing, one way or the other, on what he recommended.