Secular music and faith - should there be a line?

As most of you know, one of my favorite bands is Rush. For those who've never heard of them, they're a Canadian rock trio founded in the Toronto area in 1968. Their debut self-titled album hit the shelves in 1974 with Geddy Lee on bass and lead vocals, Alex Lifeson on guitar and (the late) John Rutsey on drums. Later in '74, Rutsey bowed out due to health problems (he died within the last few years), then Neil Peart joined the band as the percussionist. He later became the chief lyricist.
For many years after I became a Christian, I struggled with continuing to listen to this band because they are, well, secular - for starters, and second, they are agnostics at best. Why the struggle? I embraced the Christian counterculture of rock music in the late 1980s/early 1990s and believed some of those who said Satan directly influenced some forms of secular music. Rush got lumped into this category because of the "Red Star" emblem depicted as part of the story in album "2112."
After years of wrestling – and even skipping songs I didn't think were appropriate (which I still do sometimes) – I reconnected with the band on the album "Vapor Trails," the band's first album after they took a hiatus while Peart spent some concentrated time coming to grips with the loss of both his wife and daughter in a short period of time.
The VT album and tour was also my wife's first real introduction into the band's work, and she's hooked too.
On their 2007 release – "Snakes and Arrows" – Rush displayed the song "Faithless." Its chorus goes:
"I don't have faith in faith
I don't believe in belief
You can call me faithless
I still cling to hope
And I believe in love
And that's faith enough for me."
On a "making-of" video for the album, Lee talks about how those outside the church view it as an exclusive club. Essentially, I think they speak for people who see the church as it exists today and want no part of it. This shouldn't be seen as a threat to the church, but a challenge; a challenge to be what we were called to be and be fragrant to God and those who don't know him and are turned off by what they see from his representatives on Earth.
So, do we – as the church – distance ourselves from the likes of people like Rush, or do we appreciate their talents, hear their words and enjoy their work?