For this purpose

Like all mechanistic materialism, it was rooted in the class outlook of the bourgeoisie. The view that man is a machine is rooted in the view that in production man is a mere appendage of the machine. And if on the one hand this implies that the human machine ought to be well tended and kept in good condition, on the other hand it equally implies that no more should be expended for this purpose than is strictly necessary to keep the human machine in bare working order.

Materialism and the Dialectical Method (Maurice Cornforth)

What does "for this purpose" refer to? Is it "to keep the human machine in bare working order"? or Is it "to be well tended and kept in good condition"?

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