Actually, the reasons corporations lobby government officials is because they are trying to buy enough influence to get the government to leave them alone, so that they can rape the environment and screw the workers.

are you a total moron? all corporations exist to rape the environment and screw the workers ?
Damn man, grow the **** up.
For-profit corporations exist to reap profit and are not motivated by any other concern. This means minimizing labor costs and externalizing as many costs as possible.
Just to give an example. Suppose there is a toxic chemical that a company must dispose of. To do it legally cost them $C. However, they could just dump it in the lake behind the plant essentially for zero dollars. That would be illegal, however, so there is a cost associated with that action. If the chances of being caught are Y and the amount of the fine is $F, then the expected amount they will have to pay for the infraction is $(Y*F). if Y*F < C, a company that is risk neutral will choose to dump the chemical in the lake behind the plant because on average it is the least costly
to them.
There is an additional cost - the externalized cost $E - that society bears for now having toxic chemicals in a public resource. This cost may be hard to compute but it is there. The company doesn't pay this cost -
we do - which is fine by the company because that means it gets to pocket $E more in profit than if it were to actually have paid the true cost of dumping toxic chemicals.
This is how corporations operate and it is a natural consequence of them being motivated soley by profit.
That is OK - except that We the People - as issuers of their Charter - bear a responsibility to keep them in check. For instance, we need to ensure that $(Y*F) > $C in the case above, so that companies will always choose to properly dispose of said chemical because it will cost them less on average. We also need to ensure that $(Y*F)$ >= $E, so that the total amount of fines we collect for infractions will at least be the cost We the People incur for it. The government can change Y*F. Profit motive itself can change C by developing technology that makes it cheaper to dispose of toxic waste. The libertarian idiots would prefer Y*F = 0, however, which means C doesn't matter anymore because the corporations will only choose Y*F.
The above is just one example of how profit motive can continue to be profit motive while not harming the environment.