I think you’re confusing the electoral college with the Senate.
There are two senators per state regardless of population, so low-population rural states have an outsized influence in the Senate.
In the electoral college, each state is weighted by population. It’s unavoidably biased (just by the nature of chunking votes into seats and states) but it doesn’t consistently favor either side.
Each state gets a number of electors equal to their Congressional delegation: Representatives *and* Senators. So the overweighting of small states in the Senate does, to a smaller degree, affect the Electoral College as well (as every state gets two "free" electors).