Having been raised in Evangelical churches, I can only give an assessment based on my experience of them. The core membership of the churches I have been to was mainly made up of people who came from secure, loving backgrounds. This results, in them coming from the more affluent, academically gifted half of society. This is not always the case of course, but in the vast majority of cases. They then go to an evangelical church, and are baptised in the Holy Spirit(in the sense istcenturylady and I would agree concerning that experience) The Holy Spirit is the convictor of sin, and therefore, a person baptised in the Holy Spirit will, have a strong recognition of the Holy life they are called to lead. However, it is entirely possible(and happens) a person will then, in their zeal leave core teaching behind as to how sin is to be overcome/the justification/sanctification process and base everything(in reality) on not committing sin. And, if you come from a more loving, secure background, statistically speaking, you are far less likely to have what many consider the 'taboo sins' that will bar you from Heaven. You then become somewhat hardnosed, bringing the law of God down from the pristine level it is set at, to a place you convince yourself you do not commit sin.
But not everyone can do that(praise God) Either their eyes are opened, or they will walk away crushed, as many do. A minister said once, 85% of people who make a commitment to Christ walk away from the faith. He reflected on why that number was so high, and concluded, in so many cases it was because, people did not know the truth of the Gospel message.