The phrase "as it should be" implies that something is correct, proper, or satisfactory. There are several synonyms for this phrase, which can be used depending on the context. "Rightly" is a good alternative, which indicates that something is done in a way that is just, fair, or appropriate. "Appropriately" is another synonym that emphasizes the idea of doing things in a way that is suitable or fitting to the situation. "Correctly" can also be used to express the idea that something is done in a precise or accurate manner. Other synonyms include "properly", "adequately", and "satisfactorily". These synonyms can help add variety and clarity to our communication, making it easy for others to understand what we mean.