Reylo
Perhaps it could have been, by someone who was truly dedicated to solving those problems. But for the most part, people refused to see them. To understand that the criticisms leveled against them were legitimate. They were unwilling to abandon the old ways of thinking.
Almost every system of governance in the galaxy was born, at least in part, from violent conflict. The Republic very much included. There will always be those who stand in the way of what needs to be done.