The epidemic we have in the church is that people pretend to play...they are smug because they think any advancement is based on "works". They are against practicing and being open...because they have been told they are as good as they ever will be.
For a few, this will work out...as they will ignore the trend and be diligent. But they are doing this in SPITE of the bad doctrine.
I've seen this idea floated around, but I've always seen it being shot down by scripture pretty zealously. The idea that good works are unnecessary negates all that Jesus said. People just want easy answers.
Being saved by faith means, you accept the word of Jesus, and put it into action. Not being saved by works means, not being proud of yourself for your good deeds, like how the Pharisee prayed and thanked God for making him better than other men.
What saves you is who you become. Are you a person who gives to the poor? Or are you a person who knows he should give to the poor but doesn't because he says "Lord, Lord" and that's enough? Or are you someone who ignores the poor as the godless do? Who you become in the end is how you are judged.
Luke 12
42 And the Lord said, Who then is that faithful and wise steward, whom his lord shall make ruler over his household, to give them their portion of meat in due season?
43 Blessed is that servant, whom his lord when he cometh shall find so doing.
44 Of a truth I say unto you, that he will make him ruler over all that he hath.
45 But and if that servant say in his heart, My lord delayeth his coming; and shall begin to beat the menservants and maidens, and to eat and drink, and to be drunken;
46 The lord of that servant will come in a day when he looketh not for him, and at an hour when he is not aware, and will cut him in sunder, and will appoint him his portion with the unbelievers.
47 And that servant, which knew his lord's will, and prepared not himself, neither did according to his will, shall be beaten with many stripes.
48 But he that knew not, and did commit things worthy of stripes, shall be beaten with few stripes. For unto whomsoever much is given, of him shall be much required: and to whom men have committed much, of him they will ask the more.