I'm sorry to say that many of the people who speak in tongues do so to show they are spiritual. Others because of peer-pressure. But it doesn't mean tongues isn't legitimate Biblically.

The same can be said for some that go to church. They go to church thinking they're Christians, others because anybody who is somebody goes to church. I had a number of people who sat through salvation messages who didn't respond week after week. They were religious, and that was good enough for them. The same with the "Pentecostal distinctive". Even that has become a religious thing to some folks.