I found evidence of The Mexican Revolution changing life for the ordinary people of Mexico in several places throughout the book:
1) Part I, Chapter IV--The men under Demetrio Macias said to the villagers, ". . . those damned Government people who've declared war to the death on us, on all the poor. They come and steal our pigs, our chickens and corn, they burn our homes and carry our women off . . ." And later in the chapter, Remigia, a village woman said to the men, "Imagine! I had eggs, chickens, even a goat and her kid, but those damn soldiers wiped me out clean."
2) Part I, Chapter XIII--Luis Cervantes proclams to Venancio, the barber, " . . . when the revolution is over, everything is over. Too bad that so many men have been killed, too bad there are so many widows and orphans, too bad there was so much bloodshed."
3) Part I, Chapter XIX--Here's proof that the rebels started to act just like the Federals they were fighting against, "The rebels, the "high hats" came back as happily as they had marched forth a few days before, pillaging every hamlet along the road, every ranch, even the poorest hut." The poor common people got it from both sides!
4) Part III, Chapter I--It talks about how the common people fled before the bandits because of their looting, stealing, and murderous acts. The people considered them as bad, if not worse than the Federals had ever been. Read this verse, "Everything was silent, desolate. As soon as they saw men on horseback, the people in the huts scurried into the hills to hide . . . " Whereas the people had helped the soldiers before, now they wouldn't lift a finger to aid them! "When the soldiers reached a small ranch, despairingly, they searched the empty huts and small houses without finding a single stale tortilla, a solitary rotten pepper, or one pinch of salt with which to flavor the horrible taste of dry meat."
5) To me, the following verse from Part III, Chapter V says it all: "Juchipila, like the other towns they had passed through on their way from Tepic, by way of Jalisco, Aguascalientes and Zacatecas, was in ruins. The black trail of the incendiaries showed in the roofless houses, in the burnt arcades. Almost all the houses were closed, yet, here and there, those still open offered, in ironic contrast, portals gaunt and bare as the white skeletons of horses scattered over the roads. The terrible pangs of hunger seemed to speak from every face; hunger on every dusty cheek, in their dusty countenances; in the hectic flame of their eyes, which, when they met a soldier, blazed with hatred. "
So you see, in reading these few excerpts from the book, how life changed dramatically for the common people of Mexico as a result of the Revolution.
Check the link below for the full etext of the book.