The alternative is only counting the popular vote, which only serves to disenfranchise the majority of states.
Without the electoral college, a candidate would only have to campaign in and win three or four large states, and the rest of the nations and its concerns can be ignored.
That concern is the whole reason we have the House/Senate system: So that large states with lots of people in the House of Representatives don't run amok. The Senate balances that out.