Don't put words in my mouth. I have never said that people being harmed and killed is acceptable. My disagreement is about whether government regulations, on net, actually result in fewer people being harmed and killed, or more. That's a factual disagreement, not a disagreement about values. If I believed, factually, that government regulations actually did result in fewer people being harmed, on net, I would be in favor of them, no matter what libertarian beliefs I might have in the abstract. But my factual belief is the opposite.

To the extent it's true that being "bad for business" is no longer enough of a disincentive for corporations, as I've already said, one key reason is that the corporations have bought regulations that favor them and disfavor potential competitors.

It's true that that's not the only factor involved. Corporate governance is broken. A big part of that is also government regulation, which does to some extent prevent outright fraud (for example, the S&L debacle in the 1980s), but is perfectly fine with other practices, like golden parachutes for executives and corporate takeovers in which the buyer gets the assets but offloads the liabilities on the taxpayers, that do just as much damage, if not more. All of these things are regulated--but the regulations don't stop harm from being done.

There is one other factor that works against corporate governance which is not, in itself, a product of government regulation: the fact that most share ownership now is not individual stockholders but mutual funds. That means most people don't even know what corporations they own even small pieces of. But mutual funds are a big advantage for most people investing for their retirement, because they're an obvious hedge against risk, so they would exist even in a true free market without any government regulation. The problem is that, as far as the individual corporations are concerned, their time horizon is now much shorter. The mutual fund has to care about providing returns over a long time horizon, because it's holding people's retirement accounts, which might not be drawn on for decades. But the corporations only see short term trades being made, many of them by those same mutual funds, trying to increase their returns. So corporations have to focus much more on short term returns instead of long term planning.

That would be one area where a government ought to be able to improve things, because a government's time horizon ought to be long-term. But it isn't. Government's time horizon is the next election. So even in this area, governments are actually worse than corporations.