In the Enterprise world, jump boxes are more typically just a hack implemented by IT workers who don't want to go about properly setting up a firewall and 802.1x/vlan/vpn/ipsec/etc to allow strict control to a protected network resource. (Or because they don't have the hardware capability to do it, or their network admin decided against it).

The only two proper excuses for ever using a bastion host are "I don't have the money to do it right" and "I don't have the time to do it right."