The analogy only works if the seller of the $1 gas had acquired it illegally which enabled him to sell it so cheaply. Companies that hire illegal aliens to lower their labor costs are committing an illegal act.
Please if someone was selling gas at $1 a gallon in your town, IMO, you wouldn't care if the gas was legal or not and buy it, plus some on FR would be huzzahing, sticking it to the "evil" oil companies.