gwd-4-16 这1句话怎么翻译

Economist:        Tropicorp, which constantly seeks profitable investment opportunities, has been

buying and clearing sections of tropical forest for cattle ranching, although pastures newly

created there become useless for grazing after just a few years.        The company has not gone

into rubber tapping, even though greater profits can be made from rubber tapping, which

leaves the forest intact.        Thus, some environmentalists conclude that Tropicorp has not

acted wholly out of economic self-interest.        However, these environmentalists are probably

wrong.        The initial investment required for a successful rubber-tapping operation is larger

than that needed for a cattle ranch.        Furthermore, there is a shortage of workers employable

in rubber-tapping operations, and finally, taxes are higher on profits from rubber tapping

than on profits from cattle ranching.

这红色的句子怎么讲？

我觉得这里out of 应该翻译为出自，等同from，而不是脱离。