I don't know if my comments are one of the ones you are referring to, but as with almost everything, moderation is desirable. Absolute Capitalism is what gave us a "charge what the market will bear" approach to pricing which leads to getting a monopoly on a product then increasing the price, which is commonly being done by the Pharma industry (
EpiPens and
Insulin are both classic examples). I remember when a philosophy of "a fair price for a fair job/product" was a common philosophy of business. In many circles today (including top Business Schools),that is considered an ignorant approach, but it seemed to work pretty well. I think "what the market will bear" is not bad in a direct context, but the implied "if you can manipulate the market to increase demand, you can increase profit without additional effort" makes it problematic for the overall good of our society.
I think it is understood that this is legal, but not ethical. The Pharmacy companies do it where ever they can, but go to great lengths to try and keep it under the radar of society at large (of course it helps that they are greasing the palms of the lawmakers).
My point is that pure Capitalism is financially a very good system, but to be able to sustain for the long haul, concerns other than maximizing profit should be considered.
If you are a fan of Star Trek, consider that the Ferengi embody pure Capitalism without the constraint of human decency!
I am truly not anti-Capitalism, it is a very effective system for not only financial success for a country, but it also is very effective at driving innovation. However, I think it is imperative that we include a dose of humanity to keep Capitalism in check.