"To consider the consequences" means to think about what might happen or what might be the outcome of a particular action or decision before actually doing it. Full definition
We can not simply abandon one our richest fuel sources in the name of global warming without considering the consequences of continuing to send dollars overseas to hostile regimes with different agendas. (dotearth.blogs.nytimes.com)
However, none of these are a deterrent at lease signing, the tenant does not consider consequences for breaking lease terms at lease signing. (landlordcreditbureau.com)
But it's a gut reaction that doesn't consider the consequences. (inc.com)