Just imagine you are the company that colonizes the moon and you have a large base with some self sufficiency and a method get cargo to the moon
and back to earth. This all would require some profitability like from exporting some natural resource of the moon or maybe, but less likely, from just
the tourism. In that case, in order to keep your monopoly and in absence of any supervision by a government, you would have to build up some
defenses against competitors or other entities that want to take the moon from you. And as soon as you have those defenses, why not use them to
increase profits? What could happen to you? They can't get you on the moon that easily, you have the high ground.