That already happens now. Everywhere in the world legislators are constantly trying, and often succeeding, to push through legislation that is counter productive to the well being of society as a whole.
Here's where it gets tricky though. Let's say that an engineer in Congress makes a great law about maintaining bridges. His heart is in the right place and the law, if implemented, would do a world of good when it comes to keeping our infrastructure safe. However, said engineer doesn't have a lot of experience in the legal world. As a result, there are a lot of problems with the way his bill is drafted that causes it to directly conflict with preexisting laws that involve infrastructure and government spending. It's quickly taken to court, shot down, and a bunch of time and money is wasted. He can try to push the law through again, but the first time around it just barely eeked out the votes needed. He won't stand a hope a second time.
Now, let's flip it. Let's say a bunch of engineers have a great idea involving bridge maintenance. They collect their data and bring it to a group of interested congressmen to show them how not only will their idea make bridges safer, but save the government money in the long run. Those congressmen, being the clever law writers that they are, can write a solid, concrete bill that if passed into law can hold up to the scrutiny of the courts.
In my head, this is how I see it working. Is that how it actually works in the real world? Hell if I know. I know jack all about politics. Maybe we could get someone in here who knows a thing or two about civics to lead this conversation in the right direction.