Bolivia bought a communication satellite from the chinese to provide TV and Internet to the entire country - which is mostly rural areas that are difficult to reach (think the Andes). The other countries use multi-spectral and radar-based satellites to do several things like:

- territorial planning (e.g. cadastre and zoning)

- agricultural yield improvements (irrigation and disease detection, crop classification, etc)

- forest fire detection

- illegal mining, illegal deforestation or illegal plantation detection

- pre-disaster planning and post-disaster recovery

and other military activities. the use cases depend a lot on the type of satellite they own