Of course, yes.
No lie can lead to a good end result.
The New Testament states:
"And if Christ has not been raised, ... we [Christians] are of all people most to be pitied." (1st Corinthians 15:14,19)
If, for argument's sake, Christianity were in fact a total fabrication - and a Christian devotes their whole life to living according to the gospel - you might say, "no harm done, since it helps them be morally good people". But there are tons of alternate ways of living a moral life (if that were the sole aim, which is isn't) that do not require interacting with an invisible God. Hence, as the apostle Paul said, we Christians would be the most pitiful people. If there was no Resurrection, then Christians would be living in a delusion ... and, no matter which way you spin it, living in a delusion can never be treated as a positive.
Hence, whether Christ is the only way ... or whether Christianity is the biggest delusion ... all hinges on the Resurrection of Christ being literally and historically true.