Religion ... pure and faultless is this: to help widows and orphans in need and avoiding worldly corruption. James 1:27

You might be talking about the sarcasm worship of the non-existent flying spaghetti monster sky God religion.

Biblical defined religion seems to be a rather good thing for people to help those in need while avoiding worldly corruption.

Because it blocks other trains of thought which might have emerged.
Agnostics believe ANYTHING is possible, given a certain set of premises. People might argue about conclusions, but more often, I think, about the underlying assumptions. Faulty reasoning leads to faulty conclusions.
If your underlying assumptions is there is certain kind of god (or if you're an atheist assume there ISN'T), and if this assumption is not true, then obviously everything you say past that point is untrue.
Since NO assumption about the subject of god can be considered 'true,' no conclusions based on any such assumptions can be considered valid.
SO, an agnostic approach permits ANY possibilities equal validity, and if and when we uncover more information about the subject of 'god,' our minds will be free to accept these newly-discovered facts without prejudice.

A complete question would be on order.

What do you mean by ‘good’ or ‘bad’ ?

Good or bad what? Unless it’s a subjective question in which case responses will be based on opinion which are irrelevant other than for the individual

As it stands the sentence makes no sense.

Religion is neither good nor bad. It is what people do with it that can be good or bad.

. . . false dichotomy :

[en.wikipedia.org]

It's real bad for me.