Yes agreed.
But look at this scenario. We press ahead with building spacecraft to reach the far corners of the galaxy, in 25 years time we build a craft that can travel at the speed of light, be self-generating power source and can support 1000 passengers.
We explore the galaxy and discover other 'beings' who accept us to their worlds.
So guys, you're from Earth? We've been trying to contact you for decades - why didn't you ever reply back?
"Errr, we only pick up noise with our space telescopes".. oh right.
We've been studying your planet and wondered why a quarter of your planets population is thirsty, hungry and dying?
"Errr, we were too busy building this spacecraft to be bothered with that".. oh right.
Those things with 4 black circles at each corner, which you get into and then slowly move along those long black straight lines on your land and occasionally you pour some liquid into the back of - what are they?
"They're cars, we use them to go places".. Oh right.
That white stuff you had at the top of your planet - what have you done with it?
"Errr, thats ice it melted because of the primative technology used in our cars, boats and planes and then flooded our coastal areas because we didn't know how to solve that problem".. Oh right.
We watched some of your media broadcasts, something called Reuters, is this Earths favourite fictional show as it is always showing humans blowing themselves up or killing each other?
"Errr, no this is just daily life, we haven't bothered with peace in our humanity on our planet".. Oh right..
Err, sorry, we don't think we'll get on as you're a bit too primative for us... see ya...