Here's why:
* Missing article: "Goods" needs an article (a, an, the) before it.
* Unclear meaning: "Goods of country" is vague. It's not clear what kind of goods are being referred to.
Here are some possible corrections:
* Everybody expected to work for the goods of their country. (This clarifies that people expected to work for the benefit of their nation)
* Everybody expected to work for the country's goods. (This clarifies that people expected to work to produce goods for their nation)
* Everybody expected to work for the country's prosperity. (This is a broader and more general statement about people's expectations)
The specific correction depends on the intended meaning of the sentence.