Idiots & morons or just not thinking?

Okay - I know now is the "me" generation. I know that we have lost all patience for anything. We fidget and fuss if our lunch takes 2 minutes to warm up in the microwave. I was probably in junior high when we got our first microwave - so having warm food cook that fast was just amazing. Before that I was too young to pay attention - how long did it take to make a "fast" dinner? half hour? hour? A lot longer than a "fast" dinner is now. I remember being amazed at pizza delivery... they would make pizza and drive it to our house? really? Now I don't even pick up the phone - I use the internet... order my pizza and before I know - it's here. Life is good.
So here I sit this evening and the weather forecast is call for "thunder freezing rain" tonight... after we got a sleety snowy mix today that makes it look like a giant slushie threw up outside... so if they are right, we are going to have a thunderstorm and the rain is going to freeze when it hits the ground. Beautiful. I live in St Louis, Mo for and for those that don't know it - we got hit with a major ice storm last year that was just insane. Well first in late summer we had a major wind storm... on the news they said it was the great tree pruning... there are about 6 different routes I can take to leave my house and get to a major road. Of the 6, 4 were blocked by trees down... not limbs - trees... 100 year old trees laying across the road - everywhere. I lost about a 90 year old elm to that storm although it didn't split until a couple weeks later. So then we get this major ice storm and my other elm of the same age lost probably a good 1/3 of it's limbs and somehow lived. Most of the city was without power for a week after both of those incidents. I'm not looking forward to "thunder freezing rain".
So what is my gripe? You know I have one... this isn't random... I decide to run to the store this afternoon before the ice... it is a St Louis tradition. We go buy bread, milk and eggs on the eve of winter weather. Well I bought bread, lunchmeat and alcohol but I don't have a family to feed so I'm allowed... I drive to the store which is just two long blocks away and the roads are passable but slush covered... and ice pellets are falling out of the sky. I find a parking space and walk to the store. I go to cross from the parking lot to the store and the people in cars are not even slowing down for the stop sign by the door so the people walking are stuck standing out in the weather waiting. This is a level parking lot - there is no reason for them to not stop - except that they don't want to wait an extra 15 seconds in their warm sheltered car so that the people wading through the slush, getting hit with ice pellets, can cross to cover and get out of the weather.
15 seconds... 30 tops... but it is too much to ask for most people. They don't notice or care that the person walking is getting rained, snowed, or sleeted on while they are warm and dry in their vehicle... they don't care that there is a big red stop sign and a pedestrian crossing...
So honestly - why have we become so self centered that we don't pause to consider that person out in the weather... that we can't slow down for 3 seconds to allow a stranger to merge safely on the highway... that we can't just take a moment to be considerate of another person and do for them what you would do for a beloved parent or grandparent. You don't even have to be actually nice and hold the door for someone... just be a little considerate.