Let me share with you the next sentence of some people who are poorer than dogs:

A poor man is worse than a dog, and it is difficult to raise his head if he has short ambitions . This sentence emphasizes that when people are poor, they may find it difficult to hold their heads high due to a lack of self-confidence and ambition.

A poor person is worse than a dog, and no one understands his suffering. It expresses that when people are in poverty, the inner pain is difficult for others to understand.

People are as poor as dogs, and their lives are as cheap as grass. It highlights that poverty can make human life seem humble.

A poor person is worse than a dog, but when you are rich, you should never forget your roots. Remind people not to forget their true heart and roots when they are wealthy.

A poor person is worse than a dog, and his love is as thin as paper. Describes how when you are poor, favors can be as thin as paper.