I also think the meat is safe as it will still be meat. Now having a herd of animals which are all clones, that's no good, but I see no reason in why anyone would do that as yes, genetic diversity is essential in a healthy flock or herd. I would assume most farmers would know this and likewise don't continually do brother sister matings.
The conditions of which clones grow up in also will have a big impact on their phenotypes, even if their genotypes are identical. Expressed vs encoded are not always identical as has been pointed out. Plus, if clones are used in a breeding program, like siblings from the same parents, all end up different as a random half of the genes from each parent will be "used" to create the new animals.
As for cloning for profit as not being meaningful, I think that in society, profit is meaningful as often, the profit drives the research that made it possible in the first place. However, when that profit gets abused and some CEO makes 100 million a year on it instead of even only 10million, the system kind of breaks down. We shouldn't get into that here though.