Yes...yes it does follow.

Your statement only occurs in exceptional small-scale cases where preservation of the ecosystems happens to be vital to the economic activity within the private property.  These two conditions are rarely aligned, and never over any significant land area.  RARELY.

The inevitable scenario is: individual property owners engaged in economic activity will have little incentive to learn or value what aspect of the ecosystem they could potentially impact.  These owners typically figure out the cause-effect of their actions once it's irreversibly impacted...if ever.

This goes on now even under the most intense regulatory regimes and in the face of evidence and enforcement.

Will you please state any example, anywhere in the world, where significant swaths of privately-held, economically-productive land have resulted in long-term preservation of the inherent ecosystems in the absence of intervention from regulatory action?

You know, just anywhere in the world?