as短语作宾补

Consumers may be willing to buy a companys products as an indirect way to donate to the good causes it helps.

请问这里的as an indirect way在这里是作宾补吗？前面什么动词可将来跟宾语后跟宾补呢？

Consumers may be willing to buy a companys products as an indirect way to donate to the good causes it helps.

as an indirect way to donate to the good causes it helps.不是宾补。as介词短语并非描述宾语的，而是讲解to buy这个动作的。所以是不定式的状语（方法状语/动机状语？）。