I just had a simple PHP application move from simple VPS hosting to full blown AWS with load balancers, RDS databases and EFS storage. It's still the same app

I just had a simple PHP application move from simple VPS hosting to full blown AWS with load balancers, RDS databases and EFS storage. It's still the same app the load balancer can only send the traffic to one machine. RDS now means DB connections are TCP not pipes. The EFS is slower than an SSD. So it's slower and costs more. Why did this happen? Because an external consultant said AWS is what the big players use. I argued that our app needs to be engineered to take advantage of AWS or this is an expensive waste. But what would I know, we went with the consultants and payed them tens of thousands to set up a bunch of AWS infrastructure I could have run on a $10 a month VPS...