What if the law is formulated to be convenient for corporations and not to protect the public and/or the environment?

Then we should work together as a society to fix the law and make sure it's applied evenly. Hard to do, but necessary.

Is there an alternative?

Then we should protest the law.

In some vague abstract sense? Wouldn't protesting specific instances where bad laws are letting companies get away with environmentally damaging practices be more effective? As and when there's a pattern of events that is best addressed by adjusting the law, politicians and voters can figure that out for themselves.