"And He gave some as apostles, some as prophets, some as evangelists, some as pastors and teachers, for the equipping of the saints for the work of ministry, for the building up of the body of Christ" (Eph.4:11,12). What do we see here? That Jesus has given different people to the church with responsibilities for helping the people in the church to grow spiritually and become more like Jesus. For example, a pastor is a shepherd who is to feed the sheep and generally take care of them, provide appropriate food for them, protect them from harm and lead them to green pastures and still waters. This is how he has to serve his Lord and the people He has entrusted to him.
But imagine a 'pastor' who exploits his sheep, demands money for the church so that his salary can increase, gives them fast-food that appears, smells and tastes nice without sufficient nutrients but with damaging ingredients, and moves on to another congregation that offers him better prospects! They are not shepherds but those who have come in to take advantage of unsuspecting sheep like wolves in sheep's clothing who have come in to devour the sheep. Or another 'pastor' who is planning to increase the congregation to increase his status and prestige so that he can be well known.
"And the Lord said, 'Who then is the faithful and sensible steward, whom his master will put in charge of his servants, to give them their rations at the proper time?'" (Lk.12:42). This is what the Lord expects from His pastors, faithfulness. But many of them are interested in their position, honour, wealth, perks, etc., without their focus being on serving people according to the Lord's leading. Many of them insist on being addressed as 'Pastor' and will give a withering look if someone calls him 'brother' (Mt.23:10). This is in spite of Jesus saying very plainly that we are 'all brothers' (v.8). They are keen on going on to rise to senior pastor, area supervisor, regional director, etc., rather than learning how to serve their people better. They would like to have prominent positions on the platform during conferences or public meetings, and important roles wherever they are, whether it is marriage or funeral. "Touch not the Lord's anointed" is a favourite verse they quote, some of them even prophesying calamity if anyone questions them or disagrees with them.
Of course, we ought to respect and give honour to those who are serving the Lord and His people with love and sincere care. Thankfully there are some such ones around. But what do we see mostly?
When people think of 'pastor' (and others) as titles, some big churches give it to many people, with 'pastors' responsible for different activities in the church that are not even connected to shepherding! Don't think that it is just a matter of semantics or the evolving use of words. This comes from separating these words from job descriptions and treating them as titles, leading to a dilution of the jobs themselves.