What would the world be like with no psychotherapy?

I am doing a commemorative speech on psychological therapy in my speech cl. I have to have three main points as to why psychotherapy helps make the world a better place. my first one says that it saves people's families and lives through intervention for people with illnesses like depression or anorexia. i was going to say for my second point that without it there might be many more emotionally unstable and disturbed people on the streets. i dont know if thats a good one though because i cant think of any proof or quotes i can use. can you help me with one or two more points?? thank you so much