1. The social class that wrote the constitution was the the upper class  who are business owners and property owner and it was made  in a way where the lower class have little to no power over the upper class .

2. To be honest the social classes has not changed as much but there is more opportunities to the lower class today then back then , but the lower class still struggle a lot more people are becoming homeless and sick because of the lack of living needs . 

3. They were afraid that the power is going to go to the wrong hands. Democracy was called the most of all political evils .