To clarify, are you suggesting capitalism doesn't select for cynicism, cruelty, unscrupulousness, and deceitfulness? If so I find that remarkable.
If I were to guess at what true universal human values were, I'd take a look at history, anthropology, theology, and philosophy. The trend seems to be that humans universally value selflessness, sharing, doing good to one another, long term thinking, justice, and fairness. Humans seem to universally deride greed, selfishness, cowardice, causing harm to other humans, injustice, unfairness, and boastfulness.
I argue that the derided values are those that are rewarded the most under capitalism, and capitalism at its worst punishes those that live the desired values.
It sounds like you disagree, so, some examples:
In my characterization of the worker / employer relationship, the employer that best is able to exploit their workers (without going so far as to have measurably negative consequences on output or turnover), will have the highest profit margins compared to their competitors, all other things being equal. When they've all found all the other inefficiencies in the market, the last that remains is how terribly they can treat the workforce and still turn a profit. The investment market will see this organization having the highest margins and reward it with the largest stock price. The people who made the decisions to treat the workers poorly will be compensated well for it, being executives and having equity. They might even build career reputations on being able to come into a company and find the maximum possible level of exploitation (it won't be called that, it's called cost cutting or similar).
Thus capitalism rewarded treating humans poorly and short term thinking. Conversely the employer that treats its workers well won't have as high profit margins or growth, money to spend on stock buybacks etc, and so will have a lower stock price, lower valuations, etc, and will be punished according to the KPIs of capitalism. "How happy are your workers" isn't a KPI of capitalism.
Next, the cigarette industry. People like smoking tobacco. People would have bought paper tubes with tobacco in it. But they wouldn't smoke it as much as paper tubes with tobacco and a shitload of known-toxic additives. So, the companies that added a bunch of toxic additives (that increase addictiveness, etc), were rewarded immensely under capitalism. When non capitalist mechanisms kicked in to limit their profits, the companies leveraged their capitalistic power to maintain margins, through lobbying. Thus greed and harming humans was rewarded under capitalism. Marlboro is worth far more than your given indie tobacco purveyor that doesn't add additives.
Just look at the overall state of our society and the fact that capitalism rewards our most derided values and often punishes our most treasured values is fairly obvious: teachers make less than investment bankers. Landlord success is correlated with tenant misery. Public transit in the USA died to feed the automative industry. I mean, America turned its healthcare into a for-profit industry, and just look at the results. But, the health insurance industry is worth 1.59 trillion, so, by capitalism's values, it's awesome!