Homo economicus gets a bad rap, as being insensible of the finer things in life: love, charity, worship, beauty, and so forth. He is supposed to be interested only in profit for himself.
In fact, the notion is far more comprehensive. Included in the calculus of what is profitable to economic man is his evaluation of what is morally best, spiritually best, and so forth. We all weigh our decisions in this manner, balancing our desires to fulfill obligations, to meet duties, to care for our bodies and for those whom we love, to tend the garden, make some profitable trades, respond to customers, go to church, and so forth. Economic life is not about spending and getting money, it is about allocating time. And the question ever before each of us is always the same: what is the right thing to do now, mutatis mutandis? I.e., given my overall schedule of preferences for all the possible things that I could do – including doing nothing – what is optimal?
Homo economicus is often profane and wicked and debased and ignoble, to be sure; but only because he is Fallen, and then only insofar as he has not been baptized and converted to a new and righteous and truer mind, so that his preferences are still whacked by idolatry and falsehood and unbelief, thus queering and ruining all his evaluations. The homo economicus that people gripe about is miscalled. His true name is homo irreligiosus.