Servants are valued for their services.

But the dominance of this motive is not due to a decline in the absolute importance of the other two utilities possessed by servants.

It is rather that the altered circumstance of life accentuate the utility of servants for this last-named purpose.

Women and other slaves are highly valued, both as an evidence of wealth and as a means of accumulating wealth.

Together with cattle, if the tribe is a pastoral one, they are the usual form of investment for a profit.