In the next paragraphs, it turns out that there isn't laziness, but misaligned incentives. The lifeways of the people involved were not those of the writer who jumped to conclusions about the people who were different from him.
In generalizations supported by another study of Mexican labour conditions, Wilbert Moore remarks: "Work is almost always task-orientated in non-industrial societies ... and ... it may be appropriate to tie wages to tasks and not directly to time in newly developing areas".
When comparing and contrasting cultures, empathy for each and their particular incentives must be taken into account.
This is particularly important as he's spent a dozen pages talking about how poorly the English dealt with industrialization over centuries themselves. How quickly we forget.