Multiple hack attempts blocked and a question for everyone

Hi,
Today a plugin notifies me of someone whose trying to access my WordPress site and when he failed he tried SQL injector to inject malicious code luckily my security settings don't allow him to do that. I blocked his IP and I'll contact his host and report that IP to him too.
In last 7-10 days I see a lot of junk/spammy/shady traffic and people try to copy my site.


My question is same (like millions of people out there) why people try to hack a running and profitable website? Why they want to copy a site instead of creating their own?

Jealousy maybe. And other people just want to make easy money by copying content from other sites.

Main reason is to put their own content and links.