Advantages given by scientists inventors doctors and industrialists to the world in last 2 centuries?

In the last two centuries scientific and industrial advancements have taken place making the life comfortable for example agricultural reforms(pesticides and herbicides),nuclear waste ,reasonable housing and better communication etc. the advances in science and medicine have extended life spans from 30 to 60 or even 80 years and improved quality of life as now many diseases and injuries have been healed and epidemics and plague have generally been controlled.

Life would be miserable regarding lack of proper medication,better housing and other technological advancements (internet,telephone etc.) meant for human betterment