Well, for one, the world changes around us in ways that necessitate innovation. But even if it didn't, if life can be better, why wouldn't you want that?
I never said it's wrong to want life to be better. Life is life. If someone finds enjoyment in a different way or pace of life, that's fine. The world's gonna do what the world's gonna do - some people want to be at the forefront, while others want to go with the flow or chill out.
Who is "we"? What of the people who are already very comfortable and happy living humble lives without keeping up with the current cutting edge of technology? The person content to sit on the shore and fish at a slow pace? To wander off into the woods and read a book for a few days?
Must they "accelerate" and "keep up"? Do they truly suffer if they don't? If they're happy doing so now, will they be unhappy in the future if they continue down their chosen paths?