Is it ok to set the MacBook Pro to never sleep when plugged in?

Question

I'm having some issues with my remote desktop software and the Wake-on-LAN feature.

On that note, is it ok to set the MacBook Pro (17" 2009 unibody) to never sleep when plugged in?

Am I somehow shortening the lifespan of the Mac by doing this?

I'll probably be doing this 9 to 5 as it were while at work during the week.

All other energy settings are default including all on battery settings and the hard disk and screen off settings for plugged in.

Cheers