Based on conversations I've had with people about uploading conciousness, my experience has not been that people think of it as a monument to their ego. For those with interest in this tech, the understanding seems to be that they will continue to percieve and think through this new, uploaded form. This also seems to be how it's usually portrayed in media (e.g. Black Mirror's "San Junipero" episode) though of course, it may turn out to be impossible.

I guess I haven't spoken to enough rich, eccentric types :) But seriously, if there are people who think of it like building a monument to one's self, I'd be interested in whether/why that is satisfactory for them.