Moralizing the incentives of politicians while framing business leaders' behavior as rational responses to their incentives somewhat betrays a lack of sophistication of thinking here.
Businesses have a duty to make money, politicians have a duty to work in their constituent's best interests, only one of the two is failing in their duty but they're both acting immorally.
As an aside calling another post "dumb" is quite clearly against the site's rules. You're welcome to disagree but the civility is lacking.
capitalism instead acknowledges that people will sometimes (often?) have selfish intentions and redirects that penchant toward productive economic purposes through competitive counterbalance.
it's still not ok to be a jerk, but if you are one, the system counteracts your selfishness with that of others to reach a greater good (in the form of efficient allocation of resources). "because capitalism" doesn't excuse bad behavior; rather, it brings bad behavior out in the open so other social structures/norms can deal with it.