Nice looking pins and good content is never bad idea
You never know who can see your pin and what pin can go viral with all these algo changes.
I think I mentioned what once, but I'll mention it again.
repinned my pin once. She's not following me, we don't have any connection at all and I think I got about 60-70 EUR in my adsense in 24 hours from just that one repin. Pin looked nice, she probably saw it in her feed and repinned it.
After short investigation, I found out the profile belongs to Pinterest co-founder's mom
So, yes, make nice pins, it's worth it.