If we are talking about the reconstruction period, the Radical republicans wanted to ensure an absolute right to vote to all African-Americans, as well as giving them land and education as a mandatory thing. Moderate ones didn't want to agitate the southerners too much so they didn't want to give them land, and when it comes to education, it was open to them but was not mandatory for African-Americans to go to school.
1. to spread christianity
2. they thought that they could become wealthy
You allready got the answers to this
