So if your question is in good faith let’s break it down a little.
Capitalism is a economic system. It may have some liberal or conservative slant inherently, but in theory there isn’t anything implicit.
A liberal or conservative economic policy would be how you manage that economic system. Liberal economic policy should tend to favor rules and regulations to account for the flaws of unchecked capitalism. Conservative policy tends towards less regulation, relying on the market system to set prices for goods and services.
Personally, I’m liberal because the ultimate goal for any capitalist is a monopoly. Often in that situation, you get an unequal power dynamic that allows a company to stay ahead of competition or bully them out of the market, preventing the market from setting prices. Additionally liberal policy tries to regulate negative externalities, such as companies dumping chemicals in a river (such as when the Ohio river caught on fire leading to the creation of the EPA). Frankly, these are real problems inherent in capitalism that conservative policy doesn’t address because it makes the rich richer. It’s pretty disingenuous to argue that liberal policy is there to benefit the rich.
Anyway, that’s a super basic breakdown. None of that is say there isn’t corruption from the rich and greedy in politics. Frankly, money equating to political influence is crazy and has allowed the weathly to completely shape world policy. If you want change, look to rank choice voting systems or other ways to move more choice and power back to voters.