Why are we living like this?
No one is going up to people and offering them a better alternative. Literally that's it.
On a less flippant note, The people who represent us, care more about the orhanizatins who give them money than they do about the needs and wants us the people they are representing.
If you aren't producing value to pursue who can offer you a better life, then there is no reason for then to offer it to you.
Now add in tradition, culture, religion and a host of other competing morals and opinions, and we have the world of today
You need to account for elevation. A lot of recipes get it wrong because people in very different atmospheres of pressure try the same methods without adjusting for that important factor