What populist nonsense. There is a lot of great quality software out there, think about the Apache web server and the Linux kernel just to name a few in the open source domain. Built by people who care deeply about the software they develop.
In many closed source companies there are plenty of people improving their software products on a daily basis, who are not in it just to make a quick buck. People that consider software development their profession and work on better practices and higher professional standards. I am lucky enough to be in the company of many of them.
Of course there is software that sucks. Just like there are houses, cars and fast foods that suck. You can find examples in everything built by people all over the world. That is not a reason to fear a catastrophic end of the world, especially not one caused by software failure.
There are real problems we should collectively worry about, like war and disease.
Leave the worrying about software quality to the developers and managers who take responsibility and are doing something about it. Let the doomsday preachers complain amongst themselves on the sideline while software is eating the world and innovators are creating a better world.