I am glad that you are interested in this topic. Thank you. :)
The inventor of TV was just an example and every entrepreneur has his unique way of "bringing good to the society". Somebody can even employ cheap labor from poor countries and, as written in the article, that's not a bad thing.
As I said, state acts violently and every entrepreneur want to have profit, so it is much easier to lobby at politicians and get regulations that harm the competition. That's not a problem of those entrepreneurs, but a problem of the system. Greed is a beneficial thing in the free market, because by satisfying the most urgent needs they get the biggest profit.
Sacrificing nature in sake of profit, well... that is not something inherently bad. I think that everyone should do with his property, what he thinks is the best. Today, there is not a big market need for protecting the environment, because the state assume this role, so almost nobody does that. That's a similar thing as protecting culture.
I can agree with you that nudging the invisible hand can bring better results in a certain industries. If you order people to pay taxes to you and you then transfer most of this money to, for example, healthcare, then of course you would (probably) have better healthcare than on the free market. But politics is a game of priorities. As a politician you constatly argue with somebody what's best for the people. Where to put money. Why would a politician have a more reasonable judgement than those who are involved? I think that I can decide things about my life better than a politician, who is a part of system that is highly inefficient and has no idea what my priorities are... through the free market, there are expressed the real needs and I have no idea why should the state get better results even if there was no inefficiency.