This is all a matter of opinion. The answer seems to be both yes and no.
It would be a better place if people had more closeness to one another and if social interactions were not as superficial and cheap as they seem to be these days. It seems that social networking and cell phones have cheapened social interactions and caused people to take them for granted. Such technology even causes people to get into the habit of demanding interactions where they are not desired. But at the same time, computer technology has increased the spread of information and helps people who don't normally see a lot of each other to still have contact and connection.
Then there are matters related to laziness and dependence. People put too much faith in technology and have forgotten how to do basic things without it. For instance, drivers will follow their GPS off of cliffs or into lakes, and few people can still do math in their heads. If the computer says it, then it has to be correct, right?
Well, a computer would have to be an invention as it was the result of study and experimentation.
You failed to list the invention to consider.
different
A gadget is an invention of someone's.
I would crawl into a dark corner.
badness
Computers
You would have to call the company and tell them about your invention. Try to asure them you came up with it yourself.
There are many answers to this question and it is all down to your opinion. for example some people may say that guns have benefited mankind the most but i disagree and think that they should never have been invented. My answer to this question is the invention of the usage of fuels because without fuels we would not have things such as electricity and without this the internet, computers phone etc would all be useless and if e could not use fuels so would cars and planes.
Even fatter
no because without fractions we would have no accuracy
musical instruments...where would we be without music?