pious
adj
1 having or showing a deep devotion to religion (对宗教)虔诚的.
2 (derog 贬) hypocritically virtuous 假虔诚的; 虚伪的
He dismissed his critics as pious do-gooders who were afraid to face the facts. 他把批评他的人斥之为不敢面对事实的假善人.
I suggest that we ask users of this machine what they think about it. We can photograph them using it too. Then we can put their comments at the top of the advertisement in big print. We can bring in some humour too. People enjoy reading humorous ads.