Poor get half off

Leviticus 14:21 says, “And if he be poor, and cannot get so much; then he shall take one lamb for a trespass offering to be waved, to make an atonement for him, and one tenth deal of fine flour mingled with oil for a meat offering, and a log of oil;” Isn’t it nice of god to let the poor off for half the price.  Leviticus 14:10 “And on the eighth day he shall take two he lambs without blemish, and one ewe lamb of the first year without blemish, and three tenth deals of fine flour for a meat offering, mingled with oil, and one log of oil.”  But god gets more death from the cheaper payoff.  Leviticus 14:22 “And two turtledoves, or two young pigeons, such as he is able to get; and the one shall be a sin offering, and the other a burnt offering.”  It seems to be a deal for all parties involved.  God gets three deaths and the poor man only loses one sheep and two found birds.  But who is paying the actual price.  Seems to me it is the animals who have to die for the guy who god gave leprosy.