For me, the takeaway is that following any man is foolish and if we do look up to others spiritually, it should be looking for the Christlike characteristics in them, not the people themselves.
"13For such men are false apostles, deceitful workmen, masquerading as apostles of Christ. 14And no wonder, for Satan himself masquerades as an angel of light. 15It is not surprising, then, if his servants masquerade as servants of righteousness." (v. 13-15)So in a time where pastors are so highly regarded (I mean regarded higher than they ought to be) and when many Christians have turned their ears to a doctrine that falls easy on their ears (2 Timothy 4:3-5), I believe it's absolutely essential that we pray and be careful not to be deceived. We don't need to fear Satan but it would be wise not to underestimate his craftiness, especially when he's using people in the church as he did in Corinth.