Earlier quoted context omitted.
Self-preservation is the most selfish thing you can be centered on, and it is absolutely ethically and morally correct. Being self-centered is what makes free markets successful, as in pitting your self interests against others, brings out the most productive aspects of everyone involved.
Except by that standard, me pouring waste in the river, instead of paying to have it properly disposed is "ethically and morally correct."
Dumping waste in the river may be cheaper now, but won't be if you get hit by a fine, or have to deal with an angry mob at the factory gates, or end up polluting your own drinking water supply.