Space exploration costs us a fraction of a fraction of our resources. All of our problems are mainly political ones.
More knowledge is always good. We do not know when or where or how it will come into use in the future. In addition to, yes, enticing our lives and culture. Possibly inspiring people to build a better future and to care.
For how much it costs, it’s a far better use of our resources than a lot of other things we spend them on.